---
product_id: 2171008
title: "Fieldpiece PRH2 Digital Pocket Psychrometer for HVAC"
brand: "fieldpiece"
price: "$176.22"
currency: USD
in_stock: true
category: "Fieldpiece"
url: https://www.desertcart.us/products/2171008-fieldpiece-prh2-digital-pocket-psychrometer-for-hvac
store_origin: US
region: United States of America
---

# Bright backlit display Pocket-sized precision Twist cap sensor protection Fieldpiece PRH2 Digital Pocket Psychrometer for HVAC

**Brand:** fieldpiece
**Price:** $176.22
**Availability:** ✅ In Stock

## Summary

> 📐 Precision in your pocket, performance in your hands.

## Quick Answers

- **What is this?** Fieldpiece PRH2 Digital Pocket Psychrometer for HVAC by fieldpiece
- **How much does it cost?** $176.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/2171008-fieldpiece-prh2-digital-pocket-psychrometer-for-hvac)

## Best For

- fieldpiece enthusiasts

## Why This Product

- Trusted fieldpiece brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **In-Duct Ready:** Narrow tip design slips effortlessly into ductwork for accurate in-duct analysis.
- • **Pocket-Sized Power:** Clip it on and carry precision wherever you go—like a pen, but smarter.
- • **Sensor Safety First:** Twist cap shields sensitive sensors, ensuring durability on every job.
- • **Bright Backlight Display:** Work confidently in low-light environments with a crystal-clear backlit screen.
- • **Rapid Psychrometric Readings:** Get instant humidity, wet bulb, dew point, and dry bulb temps for on-the-spot decisions.

## Overview

The Fieldpiece PRH2 Digital Psychromotor is a compact, battery-powered tool designed for fast, accurate psychrometric measurements including relative humidity, wet bulb, dew point, and dry bulb temperatures. Engineered with a narrow tip for duct insertion, a protective twist cap, and a bright backlit display, it’s the go-to device for HVAC professionals seeking reliable, on-the-go diagnostics.

## Description

Use the pocket sized PRH2 for incredibly fast and accurate everyday psychometrics. Get your percent relative humidity, wet bulb, dew point, and dry bulb temperatures quickly and easily. made in United States. Manufactured by Fieldpiece instruments Inc.

## Features

- Use for walk around testing or in-duct analysis
- Clip it to your pocket just like a pen
- Narrow tip for insertion into ductwork
- Twist cap protects sensors when not in use
- Bright backlight

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0087SD43W |
| Best Sellers Rank | #43,814 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Multi Testers |
| Brand Name | Fieldpiece |
| Customer Reviews | 4.6 4.6 out of 5 stars (715) |
| Included Components | Meter |
| Item Dimensions | 0.09 x 3 x 2 inches |
| Item Weight | 3.2 ounces |
| Manufacturer | Fieldpiece Instruments Inc |
| Measurement Type | Psychrometer |
| Model | PRH2 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | PRH2 |
| Power Source | Battery Powered |
| Specification Met | Some |
| Style Name | Digital |
| UPC | 872641002664 696335209166 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 120 °C |

## Product Details

- **Brand:** Fieldpiece
- **Item Weight:** 3.2 ounces
- **Item dimensions L x W x H:** 0.09 x 3 x 2 inches
- **Power Source:** Battery Powered
- **Style:** Digital

## Images

![Fieldpiece PRH2 Digital Pocket Psychrometer for HVAC - Image 1](https://m.media-amazon.com/images/I/61Wt5e-CwAL.jpg)

## Questions & Answers

**Q: how can i use this**
A: When you go in to the customers house turn on The A/C take WB (wet bulb) reading at the return air grill then go outside and take a dry bulb measurement at condensing unit or heat pump use your measurements with your refrigerant gauges. And calculate your subcooling or superheat depending on weather you have a TXV or not, I just enter the values in to my SMAN4 gauges and it calculates it for me the I either add or remove (reclaim) refrigerant to reach my subcooling or superheat or you can type in Fieldpiece PRH2 in to You Tube and watch a video on how to use it

**Q: Tip diameter and lenght? For measuring WB temp of air entering and leaving evaporator?**
A: The PRH2 is an economical, stand-alone psychrometer that measures wet bulb, %RH, dew point and dry bulb temperatures, all in the convenience of a pocket tool. Portable enough to clip into a pocket, the PRH2 is great for walk-around testing, and the pen-like psychrometer features a slim, 2” long tip to take measurements easily inside ductwork.

The PRH2 has a bright backlight so it’s easy to read in dark areas and runs on a single AA-battery that lasts up to 100 hours.

**Q: In what way is this device a psychomotor?**
A: It's not a psychomotor, it's a psychrometer.

**Q: Can this be calibratesmf by the owner on his own?**
A: Yes

## Frequently Bought Together

- Fieldpiece PRH2 Digital Psychomotor
- Appion MGAVCT 1/4" MegaFlow Vacuum-Rated Valve Core Removal Tool
- Klein Tools 69140 K-Type Thermometer, Pipe Temperature Clamp for HVAC, Measures -4 to +212 Degrees Fahrenheit

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-22*