Thermo-Hygrometers for Temperature, Humidity, and Dew Point

The RH80 Series thermo-hygrometers deliver portable, accurate monitoring of temperature, humidity, and related atmospheric conditions. Compact enough for a pocket, each unit includes a protective cover that doubles as a pocket clip. These instruments are ideal for use in HVAC, labs, field measurements, greenhouses, or anywhere environmental conditions matter. Different models in the series offer increasing functionality: RH81 stores min/max values and uses data-hold and auto-power-off, RH82 adds dew point measurement, and RH83 includes both dew point and wet-bulb temperature. They balance ease of use, portability, and environmental data coverage, making them useful tools for both professionals and enthusiasts.

Key Features:

Portable design: pocket-size with cover/pocket-clip for ease of transport and protection

Multiple models / functionality:
  • RH81: temperature + humidity with min/max storage and auto-power off
  • RH82: adds dew point measurement
  • RH83: includes wet-bulb temperature in addition to dew point & basic data

Data hold function for freezing readings during measurement

Auto power off to conserve battery life

Clear digital display for easy reading in field environments

Robust construction suitable for general environmental and light industrial use