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Understanding and Preventing Kiln Relay Failure

Learn all about kiln relays and how to prevent kiln relay failure.

Three words no artist wants to hear: kiln relay failure. At best, kiln relay failure can be an annoyance that disrupts your project mid-schedule. At worst, kiln relay failure can pose a threat to the safety of your household and your property. However, the good news is that with foresight, proper maintenance, and the right equipment, kiln relay failure can mostly be avoided.

Over the course of this article, we’ll be discussing:

  • How kiln relays work.
  • Why (and how) relays fail.
  • How to choose a kiln relay that minimizes the chance of failure.
  • How to easily track preventative maintenance to know when to replace relays.
  • Kiln safety equipment to invest in to mitigate damage in case of relay failure.

How Kiln Relays Work

To understand why kiln relays fail, first, it’s important to understand how they work. In simple terms, kiln relays are a switch. Based on input from the kiln controller, relays cycle on and off – closing and opening the circuit to the kiln’s element.

When a relay closes, electric current flows to the kiln’s elements, increasing kiln temperature. When a relay opens, no current flows to the element, and the kiln cools down. Relays open and close at variable rates, allowing the kiln to reach precise firing temperatures.

Types of Kiln Relays

Different types of kilns relays have different types of mechanisms that allow them to cycle on and off. In modern kilns the most common types of relays are mechanical relays and solid-state relays. However, some older kilns still use mercury relays – so we’ll be explaining all three mechanisms:

  • Mechanical Relays: Mechanical relays have the most moving parts. Mechanical relays use an electromagnetic switch that physically moves each time the relay cycles on and off. That’s why you can hear them click each time they cycle when the kiln is operational!
  • Mercury Relays: Mercury relays work through gravity and displacement. Mercury relays use a metal weight in a tube of mercury. Gravity causes the metal weight to fall, displacing the mercury until it closes the circuit. A coil at the top of the tube electromagnetically lifts the weight when it receives current, causing the mercury to recess and open the circuit.
  • Solid-State Relays (SSRs): Solid-state relays use semiconductors and electronic parts to turn the circuit on and off based on signals from the controller. They do not rely on any moving parts to open or close the circuit.

Why Relays Fails

Kiln relay failure largely comes down to failure of their switch mechanism. As you might expect, mechanical relays have the most moving parts and are subject to normal wear and tear. They will fail eventually, it’s just a matter of when.

Mercury relays only have a single moving part and aren’t subject to the same contact erosion in high current applications. They’re extremely reliable, lasting for millions of cycles.

Solid-state relays have no moving parts. As such, they are supremely reliable and aren’t subject to any wear and tear. Their only Achilles heel is heat. Solid-state relays must be appropriately cooled via heat sink to maintain proper performance and prevent melting.

Kiln relay failure can occur in one of two positions. A relay can get stuck open, in which case your kiln will fail to heat up. While this is inconvenient and can put your project on hold, it’s far preferable to when a relay gets stuck closed! When kiln relays get stuck in the closed position, the kiln heats up indefinitely, posing significant risk to your household and property.

However, there are safety precautions you can take to circumvent any potential damage, which we’ll be discussing later in the article.

Choosing the Right Type of Kiln Relay

As you can see from the descriptions above, mechanical relays are far more likely to result in kiln relay failure. Mercury relays, while reliable, use the highly toxic liquid metal, mercury, to perform switching. As such, they’re largely obsolete and are even outlawed in states such as California.

That means that, realistically, your best option to prevent kiln relay failure is to purchase a solid-state relay. Not only are SSRs superior in lifespan and environmental concerns, but they cycle on and off significantly faster than other types of relays, resulting in superior performance and precision.

Most new kilns have the option for solid-state relays. While TAP Kiln Controllers are compatible with all three types of relays, we strongly encourage our customers to invest in a solid-state relay. The upside far outweighs the cost. If you’ve got an older kiln with mechanical or mercury relays, consider swapping them out for solid-state the next time they need replacement!

Additionally, whether you’re shopping for mechanical relays or solid-state relays we suggest purchasing from reliable, reputable manufacturers.

Preventative Maintenance

In addition to selecting the right type of relay, preventative maintenance is key to preventing kiln relay failure – especially if you’re using a mechanical relay.

As far as preventative maintenance for solid-state relays, really the biggest consideration is making sure that they are rated properly for the application and that you install the relay correctly with a heat sink to prevent the relay from overheating. Beyond that, we encourage you to store your kiln inside to avoid exposing electrical components to the elements and pay attention to your controller’s error notifications (assuming you’re using an advanced controller such as TAP that provides real-time diagnostics, as well as detailed error and firing logs).

Mechanical relays require much more proactive preventative maintenance. Mechanical relays have a finite lifespan that’s impacted by how often you use your kiln and the types of kiln firing schedules you use. However, you can find an estimated life expectancy for the number of cycles your mechanical relay is rated for from your kiln manufacturer or the relay manufacturer’s product sheet.

With advanced controllers from temperature controller manufacturers like SDS Industries, you can input life expectancy for your relay(s), elements, and thermocouples. The controller will then track the usage of these components and send you preventative maintenance alerts. This helps you replace your kiln relay before it fails.

The TAP Kiln Controller tracks kiln relay usage to provide preventative maintenance alerts to help users replace relays before kiln relay failure occurs.
The TAP Kiln Controller tracks kiln relay usage to provide preventative maintenance alerts to help users replace relays before kiln relay failure occurs.

 

Kiln Safety Equipment

Investing in the right type of kiln relay and being diligent about preventative maintenance significantly reduces your chances of facing kiln relay failure. But there will always be a non-zero chance that your relay fails, and an ounce of prevention is worth a pound of cure!

We strongly encourage our customers to invest in kiln safety equipment that keeps you safe in case of kiln relay failure. This equipment includes:

  • A reliable fire extinguisher to keep nearby your kiln to mitigate any damage in the case that your relay gets stuck closed.
  • An advanced kiln controller that provides precise inputs to your kiln relay and monitors your kiln for discrepancies to provide you with real-time error alerts.
  • A kiln control mobile app that provides real-time temperature monitoring and push notification alerts and alarms to your smartphone, so that you can spot any warning signs in real-time and respond appropriately.
  • A safety limit controller (such as the soon-to-be released TAP Monitor!) that can be wired to a safety relay to provide max temp safety shutoff even if your primary kiln relay fails.

 

Explore Kiln Control Solutions by SDS Industries

The TAP Ecosystem includes a host of solutions to enhance kiln safety and help you prevent (or safely respond to) kiln relay failure. In addition to being the most advanced, precise, and easy-to-use programmable digital kiln controllers on the market today, the TAP and TAP II Controllers by SDS Industries provide advanced diagnostics, preventative maintenance alerts, and remote real-time kiln monitoring and error alerts via TAP Kiln Control Mobile App. These features help you prevent and proactively address any potential failures in your kiln or oven build.

Additionally, our soon-to-be released TAP Monitor Digital Pyrometer & Limit Controller can be added to any kiln or oven build, regardless of your current kiln control method, to provide safety redundancy and real-time remote kiln monitoring.

We invite you to explore our selection of programmable kiln controllers, pyrometers, standalones, and conversion kits on our online store. You can also purchase TAP Digital Controllers or TAP Controlled Kilns and Heat Treat Ovens through one of the following distributors:

Shop programmable temperature controllers.

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How Safety Limit Controllers Help with Kiln Safety

Safety limit controllers enhance kiln safety by automatically shutting off your kiln if it exceeds a certain temperature.

Kilns get hot! When it comes to kiln safety, using a safety limit controller helps ensure that a kiln automatically shuts off if it exceeds a pre-defined temperature.

Safety Limit Controllers and Safety Redundancy

While advanced process controllers like TAP and TAP II have max temperature safety shutoff, you’re still entrusting the safety of yourself, your household, and your property to a single layer of safety measures.

With proper maintenance, high quality programmable kiln controllers, kiln relays, and thermocouples are extremely reliable. However, they do fail from time to time.

Watch SDS Industries’ President Scott Shannon explain the pros and cons of different types of relays.

Adding a safety limit controller (like TAP Monitor) to your kiln or oven build, adds a layer of safety redundancy. Wiring a safety limit controller to a redundant safety relay ensures that your kiln safely shuts off even if your primary controller or relay fails.

Benefits of Remote Temperature Monitoring

In addition to acting as a safety limit controller, TAP Monitor is also a pyrometric device that adds precise remote temperature monitoring to your kiln or oven build – even if you’re using a manual kiln or an automatic controller from a less advanced temperature controller manufacturer.

With the TAP Kiln Control Mobile App, you can monitor kiln temperature, receive push notifications alerts and alarms, and view real-time firing graphs – even if you have to step away from your project.

This is not only extremely convenient, but it adds an additional layer of kiln safety, keeping you immediately informed of any discrepancies in your firing schedule.

Do I Need a Safety Limit Controller?

Safety limit controllers are much more common in industrial kiln and industrial control system (ICS) applications. Most at home and studio kiln and oven builds don’t include a safety limit controller. And this is usually fine most of the time (especially if you use solid state relays and your primary kiln controller includes max temp safety shutoff).

However, like most safety devices, when you need a safety limit controller, you really need one. A small investment in a safety limit controller potentially protects your property, your health, and will save you massive amounts of money in a worst-case scenario.

If you’re still using a manual kiln or an outdated automatic kiln controller (which includes most kiln controllers currently on the market), we strongly encourage you to invest in a safety limit controller that adds max temperature safety shutoff, precise pyrometric monitoring, and remote kiln monitoring.

Adding TAP Monitor Safety Limit Controller & Pyrometer to Your Kiln or Oven Build

SDS Industries, known for creating the most advanced, easy-to-use automatic kiln controllers, is releasing a safety limit controller and digital pyrometer. TAP Monitor, which is releasing in several months, is already available for pre-order.

TAP Monitor is available as a set of DIY components that can be wired directly to a safety relay (starting at $97.50) to act as a combination safety limit controller and digital pyrometer, or as a plug-and-play standalone remote pyrometer that includes a type K thermocouple and a 2.4” capacitive touchscreen (available for $265).

TAP Monitor is an advanced digital pyrometer that brings precise temperature measuring and remote monitoring to any kiln or heat treat oven.

Both configurations improve kiln safety, but they’re also an affordable way to modernize kiln builds that don’t include precise, remote temperature monitoring. TAP Monitor provides a host of benefits (regardless of the type of kiln control method you currently use):

  • Protect yourself and your family by wiring TAP Monitor to a safety relay to provide redundant safety shutoff.
  • Have peace of mind by knowing the exact temperature of your kiln, oven, or forge every step of the way (via TAP Kiln Control Mobile).
  • Save time and effort by knowing the state of your kiln no matter where you are.
  • Ensure more consistent outcomes and enjoy added convenience by upgrading your existing automatically or manually controlled kiln to include precise, real-time digital temperature readings.


Explore Kiln Control Solutions by SDS Industries

In addition to the TAP Monitor Safety Limit Controller, the TAP Ecosystem includes a variety of programmable kiln controllers that give artists complete control of their kilns. The TAP and TAP II Controllers by SDS Industries provide users the most advanced, precise, and easy-to-use programmable digital kiln controllers on the market today. With responsive touchscreen controls, an intuitive graphical UI, and integration with the TAP Kiln Control Mobile App, TAP Kiln Controllers can pair with any relay-controlled kiln or oven.

We invite you to explore our selection of programmable kiln controllers, pyrometers, standalones, and conversion kits on our online store. You can also purchase TAP Digital Controllers or TAP Controlled Kilns and Heat Treat Ovens through one of the following distributors:

CTA for TAP Kiln Controller Shop Pages

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The Difference Between a Limit Controller and a Process Controller

Learn more about the difference between limit controllers and process controllers.

When it comes to kiln temperature controllers, there are two broad categories: process controllers and limit controllers. So, what’s the difference?

Process Controllers vs Limit Controllers: Function & Use Cases

If you use an at home kiln or a studio kiln, chances are you’re more familiar with a process controller. Process controllers, also known as programmable digital controllers, automatically adjust kiln temperature to execute kiln firing schedules with very little user involvement.

Limit controllers, on the other hand, are currently more commonly used with ICS control systems, industrial kilns, and manual kilns. Also known as high limit or safety limit controllers, limit controllers monitor kiln temperature and ensure that the kiln automatically shuts off if the kiln exceeds a specified temperature.

Process controllers execute process; limit controllers enforce limits. Process controllers are a primary kiln control method. Limit controllers, while not usually suitable to be the primary control method, are an important part of kiln safety and can protect you, your equipment, and your property in the case of relay or system failure.

The TAP II Kiln Controller is an example of a process controller that allows users to automatically execute full firing schedules.
The TAP II Kiln Controller is an example of a process controller that allows kiln operators to automatically execute full firing schedules.

 

If I Already Have a Process Controller Why Would I Need a Limit Controller?

If you’re reading this article and you already have a process controller, you might be asking: Why would I need a limit controller?

The answer? Safety.

Even though advanced kiln controllers, such as TAP and TAP II, provide max temperature safety shutoff in case of relay failure, redundancy is the key to safety. Safety limit controllers such as TAP Monitor add an additional layer of safety. When installed and wired to a redundant safety relay, TAP Monitor will automatically shut off your kiln if it exceeds a specified temperature – even if your primary relay fails.

Benefits of TAP Monitor Limit Controller

TAP Monitor is an advanced, user-friendly kiln limit controller and pyrometric device that can be paired with any manual or automatic kiln controller to provide safety shutoff and remote temperature monitoring.

Available as a plug-and-play standalone pyrometer limit controller or as a set of configurable components for DIY installs and oven builds, TAP Monitor gives ceramicists, potters, glass artists, and bladesmiths the ability to:

  • Wire TAP Monitor to a safety relay to provide redundant safety shutoff.
  • Precisely monitor the temperature of their kiln, oven, or forge via the TAP Kiln Control Mobile App.
  • View digital pyrometric readouts from any manually controlled kiln, including remote readouts via TAP Kiln Control Mobile when TAP Monitor is connected to a local network.
  • Easily add precise, real-time digital temperature readings to their manual kiln or oven.
  • Pair TAP Monitor with their existing automatically or manually controlled kiln for remote monitoring.

The TAP Monitor is a limit controller that adds remote temperature monitoring and safety shutoff for kilns.

Explore Kiln Control Solutions by SDS Industries 

In addition to the TAP Monitor Limit Controller, the TAP Ecosystem includes a variety of programmable kiln controllers that give artists complete control of their kilns. The TAP and TAP II Controllers by SDS Industries provide users the most advanced, precise, and easy-to-use programmable digital kiln controllers on the market today. With responsive touchscreen controls, an intuitive graphical UI, and integration with the TAP Kiln Control Mobile App, TAP Kiln Controllers can pair with any relay-controlled kiln or oven.

We invite you to explore our selection of programmable kiln controllers, pyrometers, standalones, and conversion kits on our online store. You can also purchase TAP Digital Controllers or TAP Controlled Kilns and Heat Treat Ovens through one of the following distributors:

Shop programmable temperature controllers.

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How to Use a Kiln Temperature Monitor

Using a kiln temperature monitor lets you monitor kiln firing temperatures and adds kiln safety.

A kiln temperature monitor is a device that monitors kiln firing temperatures. Typically, when people refer to a kiln temperature monitor, they’re referring to a device specifically dedicated to temperature measurement, such as a pyrometer or a limit controller.

In the next section we’ll explain the difference between limit controllers, pyrometers, and process controllers – because all three devices technically monitor kiln temperature. Then, we’ll explain the benefits and use cases of a dedicated kiln temperature monitor.

Understanding the Difference Between Pyrometers, Limit Controllers, and Process Controllers

Wait, but doesn’t my programmable digital kiln controller already monitor my kiln firing temperatures? Yes, digital kiln controllers (such as TAP Controllers!) receive temperature inputs from the thermocouples and display your kiln’s temperature on the controller interface (or your smartphone with the TAP Kiln Control Mobile App!).

However, digital kiln controllers are process controllers, meaning their primary role isn’t to monitor temperature but rather to adjust kiln firing temperatures according to the programmed firing schedule.

Pyrometers, on the other hand, are devices whose sole function is to monitor kiln temperature. And limit controllers, or high limit controllers or safety limiters, are pyrometers with additional control functions that allow users to pre-program their electric kiln to automatically shut off if the kiln exceeds a specified temperature.

What’s The Point of a Dedicated Kiln Temperature Monitor?

Okay, but if your primary process controller already lets you monitor kiln temperature, then what’s the point of a dedicated kiln temperature monitor? The answer: kiln safety.

More advanced kiln controllers, such as TAP, provide max temperature safety shutoff in case of relay failure. But even then you’re still relying on a single controller, a single relay, and a single thermocouple to ensure the safety of your kiln, yourself, and your property.

When it comes to safety, especially at high kiln firing temperatures, redundancy is key. A dedicated kiln temperature monitor adds an additional level of safety by acting as a safety redundancy device. When installed and wired to a redundant safety relay, TAP Monitor will automatically shut off your kiln if it exceeds a specified temperature – even if your primary relay fails.

TAP Monitor integrates with your kiln to provide remote kiln temperature monitoring to your smartphone.
TAP Monitor integrates with your kiln to provide remote kiln temperature monitoring to your smartphone – when installed with a redundant relay, TAP Monitor also provides additional kiln safety.

Introducing TAP Monitor Digital Pyrometer Limit Controller

While previous kiln temperature monitors only added kiln safety shutoff or a temperature readout, TAP Monitor by SDS Industries adds a whole lot more than that!

TAP Monitor is an advanced, user-friendly kiln temperature monitor that gives kiln operators the ability to precisely monitor kiln firing temperatures – remotely! – regardless of their existing kiln control method.

Available as a plug-and-play standalone pyrometer limit controller or as a set of configurable components for DIY installs and oven builds, TAP Monitor gives ceramicists, potters, glass artists, and bladesmiths the ability to:

  • Precisely monitor the temperature of their kiln, oven, or forge via the TAP Kiln Control Mobile App.
  • View digital pyrometric readouts from any manually controlled kiln, including remote readouts via TAP Kiln Control Mobile when TAP Monitor is connected to a local network.
  • Easily add precise, real-time digital temperature readings to their manual kiln or oven.
  • Pair TAP Monitor with their existing automatically controlled kiln for remote monitoring.
  • For added safety, use TAP Monitor as a standalone or safety relay controller.

Explore Kiln Control Solutions by SDS Industries

In addition to the TAP Monitor Digital Pyrometer, the TAP Ecosystem includes a variety of programmable kiln controllers that give artists complete control of their kilns – without complicated controls or clumsy user interfaces. The TAP and TAP II Controllers by SDS Industries provide users the most advanced, precise, and easy-to-use programmable digital kiln controllers on the market today. With responsive touchscreen controls, an intuitive graphical UI, and integration with the TAP Kiln Control Mobile App, TAP Kiln Controllers can pair with any relay-controlled kiln or oven. We invite you to explore our selection of programmable kiln controllers, pyrometers, standalones, and conversion kits on our online store. You can also purchase TAP Digital Controllers or TAP Controlled Kilns and Heat Treat Ovens through one of the following distributors:

Shop TAP Monitor Digital Pyrometer for kilns

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What Is a Pyrometer? Understanding Pyrometers for Kilns

What is a pyrometer? A pyrometer is a temperature monitoring device for high temperature applications.

What is a pyrometer? A pyrometer is a device that measures high temperatures for applications beyond the range of a mercury thermometer (673° F or 356° C). Pyrometers, also referred to as pyrometric devices, are used to monitor temperature for a wide variety of applications. From kilns, furnaces, heat treat ovens, and industrial processes, to measuring the surface temperatures of distant planets!

Contact vs Non-Contact Pyrometers

Pyrometers can be contact or non-contact. Contact pyrometers, such as pyrometers for kilns, use thermocouples that are in thermal contact with the object or atmosphere. Non-contact pyrometers, on the other hand, use optical systems to measure the radiation of a surface without the need for thermal contact.

Both types of pyrometers have their pros and cons. Contact pyrometers, also known as resistance pyrometers or thermocouple pyrometers, are subject to degradation from heat exposure and are limited by the range of the thermocouple. However, they are highly accurate and usually less expensive.

Non-contact pyrometers, also referred to as optical pyrometers, radiation pyrometers, or infrared pyrometers, have far greater range – both in terms of physical distance as well as maximum temperature. Non-contact pyrometers can measure temperatures exceeding 7232° F or 4000°C – nearly three times higher than most contact pyrometers. Non-contact pyrometers can also measure temperatures of moving objects or objects that cannot be touched. However, they are significantly more expensive and less accurate.

Pyrometers for Kilns

As you can probably imagine from the comparison above, contact pyrometers are generally more suitable for kiln temperature monitoring. Affordability and accuracy, as well as the temperature range of most kiln firing schedules, makes using a thermocouple pyrometer with your kiln a pretty obvious choice!

A Brief History of Pyrometers for Kilns

While the earliest known pyrometer dates back to the “Hindley Pyrometer” in 1732, the first pyrometer for kilns was invented by English potter Josiah Wedgwood in the 1780s. Josiah Wedgwood is an interesting figure in the history of pottery. He was a wildly successful potter, industrialist, and entrepreneur – a savvy marketeer, technological innovator, prominent abolitionist, and fashion tastemaker in 18th century England, possibly the closest thing pottery has had to a ‘rockstar.’

(An interesting aside, the fortune Wedgewood amassed selling his line of pottery to the aristocracy of England and the rest of Europe, including Queen Charlotte of England and Queen Catherine of Russia, helped fund the research of his grandson, Charles Darwin. Yes, that Charles Darwin. Wedgwood was quoted as saying, “Fashion is infinitely superior to merit,” although his pottery was widely considered to possess both due to his dedication to utilizing the latest advancements in technology).

Wedgwood’s pyrometer was an optical pyrometer that was used to visibly compare the color of the clay in the kiln to the color of clay fired at known temperatures (similar in principle to this firing chart!). Later he replaced this early pyrometric technology with using of shrinking clay rings or expanding metal bars to measure the temperature of his kilns.

In 1885, Dr. Herrmann Seger developed the pyrometric cone, another pyrometric device based around a similar principle, which remained the standard in pyrometry for at home kilns all the way up until the invention of digital kiln controllers and digital pyrometers in the 1980s. For industrial kilns and furnaces, the Siemens brothers developed a platinum thermometer that could measure temperatures up to 1832° F or 1000° C in the 1860s through the 1870s.

Alternatively, for higher temperatures, the disappearing filament pyrometer was invented by L. Holborn and F. Kurlbaum in 1901. This was another optical pyrometric device that worked by adjusting current through a filament until it matched the color (and thus temperature) of an incandescent object. Evolutions in disappearing filament and brightness pyrometers continued throughout the 20th century.

Modern Digital Pyrometers for Kilns

In the 1980s, the world became digital, and the modern thermocouple pyrometer was born. Digital pyrometers for kilns use thermocouples that attach to a temperature sensor to precisely monitor kiln temperature.

While digital kiln controllers can be used to monitor kiln temperature, a dedicated digital pyrometer adds additional capabilities. For instance, you can use a digital pyrometer to add digital temperature monitoring to a manual kiln or use it in addition to a programmable digital kiln controller to act as a safety redundancy device to provide automatic safety shutoff in case of relay failure.

TAP Monitor is an advanced digital pyrometer that brings precise temperature measuring and remote monitoring to any kiln or heat treat oven.
TAP Monitor is an advanced digital pyrometer that brings precise temperature measuring, remote monitoring, and safety redundancy to any manual or automatic kiln or heat treat oven.

The TAP Monitor Digital Pyrometer Limit Controller

The latest evolution in digital pyrometers for kilns is the TAP Monitor, which is now available for preorder! The TAP Monitor is an advanced, user-friendly limit controller and digital pyrometer that gives kiln operators the ability to precisely monitor kiln temperature – remotely! – regardless of their existing kiln control method.

Available as a plug-and-play standalone pyrometer limit controller or as a set of configurable components for DIY installs and oven builds, TAP Monitor gives ceramicists, potters, glass artists, and bladesmiths the ability to:

  • Precisely monitor the temperature of their kiln, oven, or forge via the TAP Kiln Control Mobile App.
  • View digital pyrometric readouts from any manually controlled kiln, including remote readouts via TAP Kiln Control Mobile when TAP Monitor is connected to a local network with internet access.
  • Easily add precise, real-time digital temperature readings to their manual kiln or oven.
  • Pair TAP Monitor with their existing automatically controlled kiln for remote monitoring.
  • For added safety, use TAP Monitor as a standalone and safety relay controller. 

Explore Kiln Control Solutions by SDS Industries

In addition to the TAP Monitor Digital Pyrometer, the TAP Ecosystem includes a variety of programmable kiln controllers that give artists complete control of their kilns – without complicated controls or clumsy user interfaces. The TAP and TAP II Controllers by SDS Industries provide users the most advanced, precise, and easy-to-use programmable digital kiln controllers on the market today. With responsive touchscreen controls, an intuitive graphical UI, and integration with the TAP Kiln Control Mobile App, TAP Kiln Controllers can pair with any relay-controlled kiln or oven.

We invite you to explore our selection of programmable kiln controllers, pyrometers, standalones, and conversion kits on our online store. You can also purchase TAP Digital Controllers or TAP Controlled Kilns and Heat Treat Ovens through one of the following distributors:

Shop TAP Monitor Digital Pyrometer for kilns