Digital psychrometers

[WeebMan]

What's the best digital psychrometer under $200? I know they are not the most accurate but Im a maintenance tech for a company that requires rh%, wb, and split readings on each job. So I just need to be close. The one I have now is a AMPROBE THWD-3. I've had no problems with it until recently(giving unusually low rh and wb readings). So Im looking to pick another one up asap. The only gripe I have with the amprobe is the amount of time it takes to adjust its readings. This may come with the territory of digital psychrometers but if there is a better one out there. Let me know. Thnx for the replies in advance. I've read this site from time to time over the last year but just joined today.

[nashuahvac]

Everyone is probably going to tell you to get the testo 605 because you can stick it into the ductwork. I use a kestrel and I really like it though.

[snewman24]

Everyone is probably going to tell you to get the testo 605 because you can stick it into the ductwork. I use a kestrel and I really like it though.

You're right, , I have a Testo 605-H2 Humidity stick. I use a Unibit and drill a 1/2" hole in the cold air return, and the supply air, and insert the stem right into the air flow, and I know exactly what the entering RA wetbulb is, and the temperature delta across the Evap. coil. It's small, accurate, and relatively inexpensive.

http://www.trutechtools.com/Testo-60...alc_p_555.html

[lynn comstock]

...I have a Testo 605-H2 Humidity stick. I use a Unibit and drill a 1/2" hole in the cold air return, and the supply air, and insert the stem right into the air flow, and I know exactly what the entering RA wetbulb is, and the temperature delta across the Evap. coil. It's small, accurate, and relatively inexpensive.

Good Choice.