HVAC Multimeter

HVAC service technicians carry a tool bag filled with test meters and one of the essential instruments is a digital multimeter.

What are some essential measurements a HVAC service or maintenance manager has to perform?

AC amps, AC and DC volts, microamps, resistance, diode test, and temperature are the basic tests for HVAC heating applications. The temperature and microamp readings are very useful for the evaluation of flame sensors. True RMS meters perform better, as they are more accurate than regular testers.

They need to have a ruggedized construction plus a rubberized boot, due to harsh environments, as well as a magnet on the back for convenience. A small size and backlit screen are also an advantage, as some of the work spaces are confined and dark.

Who makes quality HVAC multimeters?

There are quite a few manufacturers, but we recommend the following brands, as they are designed in the US:

Amprobe, Extech, Fieldpiece, Flir, Fluke, Klein Tools, Supco, Testo, TPI, Triplett.

Value Testers is an authorized distributor of the above brands.

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