SDP2 - Dual In-Duct Psychrometer

SDP2 - Dual In-Duct Psychrometer

Do More with One Tool

Easy Temperature Split in Real-Time -- and More.

  • Job Link mobile app compatible via JL2 transmitter
  • Simultaneous in-duct supply and return evaporator readings
  • Reacts instantly to changing conditions
  • Displays live temp split, target evap exit temp, and enthalpy change
  • Measures supply wet and dry bulb, and return wet and dry bulb - at one time

The SDP2 Dual In-Duct Psychrometer is more than just your everyday HVACR psychrometer.  It gives HVACR professionals more insight into HVAC evaporator performance than any other psychrometer, because it takes four evaporator measurements at one time:  supply wet bulb, supply dry bulb, return wet bulb, and return dry bulb.

So HVACR professionals get a live, real-time snap shot of the evaporator performance, even while conditions are changing.  Based on these live, dynamic readings, the SDP2 Dual In-Duct Psychrometer registers system changes as they happen, and automatically calculates actual Delta-T, Target Delta-T, actual Evaporator Exit Temperature, and Target Evaporator Exit Temperature.  Plus enthalpy (BTU/LBM) and Dew Point can be displayed in real-time.

  • Sends live indoor wet bulb readings directly to the SMAN460 wireless manifold or via JL2 Transmitter to the Fieldpiece Job Link App
    • The SDP2 does not link wirelessly with the new SM380V and SM480V (released in 2019).  The new SM380V and SM480V manifolds accept wireless measurements from the Job Link Probes for air measurements.
  • Real-time Target Evaporator Exit Temperature and Target Delta T
  • Displays actual indoor unit performance, AND calculates how indoor unit should be performing
  • Shows enthalpy change across the evaporator -- in real-time
  • Wirelessly sends all measurements to the Job Link App for full system diagnostics (via JL2 Long Range Transmitter)
  • Plus:
    - Hands-free testing
    - Bright backlight
    - Threaded probe locks
    - Ruled, 38" telescoping probes
    - Magnetic hanger
    - Rugged design
    - Dual display

Job Link Overview

Fieldpiece Job Link


SDP2 - Dual In-Duct Psychrometer
  • Dual In-Duct Psychrometer - SDP2
  • Two Threaded RCONEs - RCONE1
  • Blow Molded Case with Padding
  • Operator’s manual