Fieldpiece SDP2 Dual In-Duct Psychrometer

The Fieldpiece dual wand psychrometer (SDP2) is quite a versatile instrument when it comes to multiple temperature measurements.

Because it has two wands that attach to one hand-held unit, equipment temperature testing has never been any easier! Just place one wand in the return plenum, the other in the supply plenum, and the instrument displays both readings simultaneously.

When you need dry bulb or wet bulb measurements, relative humidity, or dew point readings, the SDP2 can do it. It even has a built-in psychrometric chart which will convert wet bulb readings to enthalpy, so us airheads don’t have to look at enthalpy conversion tables anymore.

Put the calculators away ‘ the SDP2’s programming will calculate the temperature differentials in any temperature parameters. It even has a function that will sync with the correct set of Fieldpiece gauges for proper refrigerant circuit charging.

Other pros of the SDP2: it’s a very rugged instrument with a protective rubber case around the front, back, and sides. Its keypad is easy to use for changing parameters, and having two wands instead of one is huge!

By the way, the SDP2 has a great display screen with a blue back-light feature.

There are only two cons to this instrument: One is the wand tips can become damaged pretty easily if you aren’t careful. The second is that the protective covers for the wand tips are black. When working in dark areas they can be hard to locate when testing is complete.

If interested in learning more about the Fieldpiece SDP2 Dual In-Duct Psychrometer, go to ncilink.com/SDP2.

— By Casey Contreras, NCI Field Coach and Instructor