Testo 115i Wired Digital Thermometer, NTC Probe, 1 Input(s), ±1.3 °C Accuracy - 0560 2115 02

The Testo clamp thermometer operated with smartphone for servicing and troubleshooting on air conditioning and refrigeration systems, as well as for their installation. In addition the measuring instrument can also be used to measure flow and return temperature. The testo 115i makes it considerably easier to work on measuring points that are a long distance apart.It Operating temperature is -20 to +50 °C It used 3 micro batteries AAA