Fieldpiece PRH2 Pocket Psychrometer for HVAC

The Fieldpiece PRH2 is a compact pocket psychrometer that delivers instant wet bulb, dry bulb, dew point and relative humidity readings — everything needed for refrigerant charging decisions and evaporator airflow checks in a tool that fits in your shirt pocket. Fast, accurate and built specifically for HVAC field work.

For in-duct measurements with a more stable reading, see the Fieldpiece SRH3. For wireless capability, see the Fieldpiece JL3RH. See all test and measurement instruments at HVAC Shop AU.

Key Features

• Measures wet bulb, dry bulb, dew point and %RH
• Instant readings — no warm-up time
• Pocket-sized — always on hand on site
• Built for HVAC refrigerant charging and airflow diagnostics
• Simple, reliable operation

Typical Applications

• Refrigerant charging on fixed restrictor systems
• Evaporator airflow verification
• Return air condition spot checks
• General HVAC psychrometric diagnostics

What’s Included

• Fieldpiece PRH2 pocket psychrometer
• Batteries
• Instruction manual