The Dual In-Duct SDP2 measures two return temps and two supply temps – at the same time.
The new Dual In-Duct Psychrometer from Fieldpiece Instruments is the first of its kind to measure both supply and return air conditions at the same time and adjusts calculations based on changing conditions. Designed for HVACR professionals, the standalone psychrometer has two probes that each simultaneously measures wetbulb and drybulb (temp) at both the return and supply to provide live readings of the evaporator conditions.