TMULD-300 - 

Detector, Multi Gas, 6 dBA, 0 °C, 38 °C

TMULD-300 - Detector, Multi Gas, 6 dBA, 0 °C, 38 °C
TMULD-300 - Detector, Multi Gas, 6 dBA, 0 °C, 38 °C

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Product Information

Multi Gas
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Product Overview

When leaks occur they often generate an ultrasonic frequency that is beyond human hearing. Amprobe’s TMULD-300 converts these sounds into an audible range for easy detection. The TMULD-300 tests pressurized air lines, refrigeration systems, and steam lines for leaks. Quickly and easily locate a leak location with this unique device. The TMULD-300 includes an ultrasonic transmitter that is great to use in areas where leaking gases are not sufficiently pressurized. Check for door or trunk seals, windshield leaks. The transmitter creates ultrasonic sound waves for detecting cracks and leaks.
  • The UT-300 transmits an ultrasonic signal for non pressurized applications
  • Tests the “air-tightness” of weather seals, tanks, ovens, refrigerators, etc.
  • Locating leaks in duct work
  • Finds the ends of buried PVC pipes
  • Detects any pressurized gas leak regardless of type CFC’s, HFC’s, Nitrogen, etc.


Sensing & Instrumentation, Test & Measurement, Portable Devices


Flexible tubing adapter, tubular extension, carrying case, power parabola, head phones, batteries (installed) & UT-300 transmitter.

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Customer Reviews

Works as promised This ultrasonic detector works as well as promised. For the cost of it I found it's well worth the cost and works well for what it's intended for You can spend more money for a unit 10 times as much and then maybe get better results I've had three people use it and they all agreed it works well September 25, 2013
Ultrasonic over 20 years and running In the eighties i purhased my 1st ultrasonic at a trade convention. the 100 series. This tool paid for itself many times over. I have found leaks both large and small inside walls , on evaporator coils, condensers and water lines. I've loaned it to two colleagues whom purchased your product immediately after using mine. These tools lead the industry in leak detection through its sensitivity and ability to detect negative or positive pressure.. I recently purchased the # TMULD - 300 and it is better than my first, which is still used today. April 18, 2012
great I love this leak detector, it does not care what refrigerant you are checking and never needs calibration March 30, 2012
Really useful leak detector Used this tool for several leak problems. With the transmitter to find leaks around windows and at stucco edges. Also used to find a leak in the window of my car. Without transmitter, I found it very easy to locate problem valves and fittings. March 29, 2012
Great help for HVAC contractors Good instrument that really helps you find small leaks. Can be used by itself, or in combination with other tools (electronic sniffer, for example). The only drawback is that instrument and accesories do not seem to be contractor grade, so you must be very careful when using them and take good care of it. It comes in a handy case that helps keep it protected. March 29, 2012
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