Five Essential Test and Measurement Tools for HVAC Technicians

Five Essential Test and Measurement Tools for HVAC Technicians

Monday, December 12, 2016


HVAC can be demanding work requiring fast, reliable, and durable tools. Whether you’re an apprentice, new to the job, or a seasoned HVAC technician, Extech can meet all of your Test and Measurement equipment needs. Here are just five of our favorite HVAC related tools:

1) Clamp/DMM, EX623



The EX623 is a 400A dual-input clamp meter with built-in infrared thermometer and non-contact voltage detector. EX623 makes for a perfect HVAC tool, offering AC/DC voltage and current measurements, as well as resistance, capacitance, and frequency measurements. The IR function allows you to test temperature without making contact, while the Type K temperature function lets you test differential temperature. What makes this clamp especially useful for HVAC is the DC micro-amp function, which will test for HVAC flame-rod current quickly and reliably. Complete with test leads, 9 V battery, two Type K bead wire temperature probes, and carrying case.


2) Air Flow Meter, AN200



AN200 is a CFM/CMM mini Thermo-Anemometer with built-in IR thermometer that provides non-contact measurement of remote surface temperatures up to 500°F (260°C). The AN200 will measure and simultaneously display air flow or air velocity and ambient temperature in order to test ventilation. With a laser pointer to improve aim, the AN200 offers an 8:1 distance-to-spot measurement ratio. Comes complete with 9-Volt battery, protective rubber holster, and case.

3) Borescope, HDV540



The HDV540 is a light weight VideoScope which includes a wired handset and 6mm diameter camera with 240° articulating tip. HDV540 will allow you to see into areas that are otherwise difficult to reach. Using this VideoScope to spot check or identify problems related to HVAC, instead of more invasive procedures, may reduce on-site costs or, at the very least, major headaches and precious time. The HDV540 is intuitive to pick up and use, and designed for one-handed operation to make tasks easier to preform and hassle free. A 3.5” color LCD screen with high definition 320 x 240 pixel resolution is your monitor as you record pictures or video with the articulating camera. Store HD videos and more than 20,000 images on the included 4 GB SD card, or plug in your USB drive directly for more space. Record voice-over audio in video recording mode to document needed repairs or on-site progress, then share it with your clients or team. The HDV500 VideoScope comes with articulating probe, USB and AV cables, SD card, 3.7 V rechargeable Li-Polymer battery, 100/240 V Universal AC adaptor, multiple plug types (US, EU, UK, AUS), and a hard carrying case.

4) Hygrometer, SDL500



The SDL500 is a Hygro-Thermometer/Datalogger which records your relative humidity, temperature, dew point, and wet bulb measurement data on the included SD card for documentation and convenience. SDL500 features an adjustable data sampling rate and will store 99 manual readings and 20,000 readings via SD card. Complete with humidity/temperature probe, 6 AA batteries, SD card, and carrying case.

5) Distance Meter, DT500


The DT500 is a laser distance meter with Bluetooth. This meter works with a free Apple app to display large, easy-to-read values up to 30 ft (10 m) away from the meter. The DT500 measures the distance from the meter to a point up to 229 ft (70 m) away quickly and effectively -- no need to get out the tape. The DT500 transmits distance readings to Apple iOS mobile devices and can seamlessly calculate area and volume, as well as perform sum, difference and Pythagorean theorem calculations, eliminating human error and collecting all your information on one handheld device. Complete with a carrying case, manual and two AA batteries.

Whether you’re a professional HVAC technician or a home-owning DIYer trying to identify an HVAC related problem, Extech will have the test and measurement tool needed for the job. Browse our catalog for HVAC related products.

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