This detector triggers a “caution” alert when a small amount of hydrogen is detected and a second “danger” alert if levels continue to rise. When hydrogen concentration reaches 1% by volume, a yellow warning light illuminates and the first relay closes to trigger a remote exhaust fan and/or alarm. When hydrogen reaches 2%, a red warning light illuminates, an alarm sounds, and the second relay closes to activate another remote exhaust fan and/or alarm.

Use the optional remote and cable to keep an eye on the detector’s alert status from a distance. Remote has a buzzer and the same yellow and red warning lights as the detector.

When your work area has too much or too little oxygen, these detectors alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the high and low alarm trigger points to suit your environment.

A calibration check must be performed on the detector before each use to verify that it is working properly. The check can be performed with the press of a button.

The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.

Measure and display real-time indoor ventilation quality. These meters operate with the included universal AC adapter or six AAA batteries. They have automatic baseline calibration. Transfer and view data on your computer using their USB cable and software.

When these detectors sense high levels of carbon monoxide, they alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger point to suit your environment.

A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator, tubing, and cylinder (sold separately).

The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.

When these detectors sense high levels of hydrogen sulfide, they alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger point to suit your environment.

A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator, tubing, and cylinder (sold separately).

The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.

Identify a variety of small leaks quickly and access hard-to-reach areas with the flexible probe. An audible signal increases in intensity the closer you get to the leak. Intrinsically safe for Class I, Divisions I and 2, Groups A, B, C, and D hazardous locations.

Check for leaks in pipes, valves, storage tanks, and other gas system components. Detector signals with both a red light and a continuous beeping sound.

These detectors are fluorescent green. Bubbling action at the source provides quick and reliable leak detection, saving time and energy costs. These noncorrosive, nonflammable detectors find leaks in pipes, tubes, fittings, tanks, and cylinders. They adhere to vertical surfaces. All wash off with water.

Use a UV flashlight for enhanced viewing.

Detect halogenated refrigerants such as HFCs, CFCs, and HCFCs. Access hard-to-reach areas with the flexible probe. This unit can detect leaks as small as 0.1 oz. per year in air conditioning and refrigeration systems. An audible signal increases in intensity as you approach the leak.

This detector converts ultrasonic waves to an audible sound so you can find leaks. Unlike typical leak detectors, this unit doesn’t rely only on the presence of a gas to work, making it suitable for a wider range of applications. In addition to gas leaks, it identifies ultrasonic sound caused by failing solenoids, valves, and bearings.

For systems under 10 psi, use the optional ultrasonic sound generator.

Also known as a combustion analyzer, this meter measures boiler and furnace combustion efficiency. It automatically calibrates to normal atmospheric oxygen.