Fieldpiece Diagnostic Psychrometer - SRH3



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The SRH3 In-duct Psychrometer is a great tool to properly charge fixed restrictor systems by quickly determining the target superheat, and to help determine optimum airflow across the evaporator with a target evaporator exit temperature test.

To assist HVACR professionals to get the proper measurements, Fieldpiece engineered this in-duct psychrometer to take measurements in the duct where they are supposed to be taken -- near the evaporator!

The 38" telescoping probe's laser etched ruling and flattened edges allows techs to locate proper measurement points within a duct and ensures that the probe is properly aligned.

With the quick sensor, it's a snap to determine target superheat, and take target evaporator exit temperature tests. Designed specifically for HVACR professionals, the SRH3 In-Duct Diagnostic Psychrometer is a great tool to properly charge fixed restrictor systems.

More than 70% of A/C units are improperly charged, and therefore running inefficiently, but with the SRH3 it's easier to ensure units are running at their maximum efficiency.


  • In-duct Air Measurements Near the Evaporator
  • In-duct target superheat & target evaporator exit temp
  • Wet bulb, temps, dew point, and %RH
  • Hands free testing
  • 38" telescoping probe
  • Quickly takes readings from the center of the duct
  • Measures temperature and %RH
  • Calculates wet bulb and dew point
  • Slim 38" telescoping probe
  • Fast response time
  • Depth and direction indicators
  • Hands-free testing with stabilising cone and magnetic hanger
  • Calculates target superheat and target evaporator exit temperature

Like all Fieldpiece products, the SRH3 digital psychrometer was engineered specifically for HVAC-R professionals. It contains the specific measurements and tests techs need, without any they don't.

Because it automatically calculates target superheat and target evaporator exit temperature, PT charts and written math are a thing of the past. Plus the dual-display with bright backlight and rugged rubber boot with probe clips make sure the SRH3 is ready for any job.


  • In-Duct Digital Psychrometer - SRH3
  • Stabilizing Cone
  • Blow-molded Case with Padding


1 Year from Date of Purchase (​excludes Consumables such as Filters, Gaskets, Leads, Batteries, Fuses, Sensors, Case etc)


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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