Testo 605i | Thermohygrometer for Indoor Temperature and Humidity Measurement | with Bluetooth Support

Works perfect with my testo 550i connectivity is spot on with Bluetooth

Fantastic probes with clear readings on the app. Grabbed two and my TD was always spot on. Discovered low charges more accurately than a thermometer.

If you have an older phone or a phone that hasnt been updated to the newest android or ios then this tool will work great. However, if you have a newer phone, particularly a samsung, then check the reviews on the play store. The app is nearly unusable on newer phones. Several features dont work properly and it is extremely buggy.

Probe works great, but issue is using with app and smartphone, manifold. Used alone with app, shows temp and hum. well. If manifold pressure is used, it reverts to temperature only readout. . Reason why 1 star taken off. Also no instructions on tip , to twist open ! I almost tried pulling the tips off until my eye caught the groove part.

Great tool to add to your toolbox if your a HVAC tech.

Bought this tool for my boyfriend who’s a HVAC tech. App is clean and easy to use. He was very pleased.

Great item, I have others by Testo

Of you arent taking delta T on both wet and dry bulb temps your missing a big part of what the HVAC-R system is doing. This doesnt have the greatest range but both that has to do a lot with building materials between you and the probes. They are accurate and precise because they almost match each other. Great for diagnostics and for quickly giving value added to preventative maintenances.