Review on 📱 Testo 550s Kit: App-Operated Digital Manifold with Bluetooth, including 2x testo 115i Pipe Clamp Thermometers, 1x testo 552i Micron Gauge, and a Set of 3 Hoses for HVAC Systems - Black by Ron Patel

Spent little time in the field, but still enthusiastic. appears to be a solid, well-built device. Exactly the same set as in the store, but much cheaper. Literally hundreds of dollars cheaper. The Bluetooth connection is clumsy. Your phone should connect automatically if it's in range and the app is activated. Sometimes it takes too long to connect. Sometimes it just won't connect at all, a way to manually connect to the phone would make it better. I still don't understand how exactly the evacuation function works. I'm not sure if this requires an evacuation sensor. The reporting feature in the app is great. Entering customer information is a little awkward, but as an accounting nut it's extremely useful.