Testo Plug-In Power Supply

Simultaneous superheating and subcooling calculations in real-time, w/ data storage.

Humidity and temperature meter with wireless and memory options.

Easily measure flow speed, volume flow, air humidity and air temperature in one sequence, perfect for HVAC and IAQ applications.

-30 to 1750°F, 75:1 (D:S), ±0.75% accuracy, easily shifts between close focus & long distance temperature measurement.