The testo 115i thermometer (clip-on probe) communicates with a cell phone or tablet via a wireless connection. It is a specialized tool for measuring surface temperatures in the fields of heating, air conditioning and ventilation. It can be used to determine the inlet and outlet temperatures in heating systems.
Testo 550s Smart Kit - Bluetooth electronic valve fixture, with clamp-on temperature probes - the ideal tool for anyone who wants to get serious about installing and servicing air conditioning and heat pumps.