Review on 🔍 HVAC Gas Tester - Digital Dual Port Air Pressure Meter Gauge: Differential Pressure Manometer with 5/16 Inches Diameter Pressure Port, Hti-Xintai by Michael Tegan

You look pretty. Well built. Compact (which I like). I was really hoping they would suit me as the ability to measure and log wirelessly is very useful, but they lack key features. No function of zero, difference selection, hold, min/max/average, start/stop recording. No device, no app. To change units on the device itself, you need to unscrew the battery cover and use a paper clip on the hidden switch. You can also switch units in the app, but the units will not switch on the device. This will cause some confusion. In principle, the HW is good (looks like my Testo Smart sensors), but a lot still needs to be done on the functionality of the software. If they could get the app to do what it needs, I would consider buying it again.