Digital Psychrometer – Handheld Temperature and Humidity Meter Gauge with Dew Point and Wet Bulb Temperature – Battery Included

This psychrometer works great. I did several tests, compared it with all kinds of instruments …. conclusion is that this device works very good and is reliable… But, you have to give it the necessary time to stabilize… Don’t expect accurate results within seconds….it’s not conceived to be like that …it works faster when there is some kind of air displacement. either by moving it, waving it a little bit or holding it in an air stream…. So actually It is perfect for HVAC work…. Very satisfied with it, good build quality and , very affordable … The screen is better readable under a certain angle, it seems like it’s done this way so you can read it when you hold it a little further from you, so there is no influence from your body temperature…. Screen can be lit when you press and hold the mode button a few seconds [...]