HMS83 Outdoor Humidity, Dew point, Wet bulb, Enthalpy and Temperature Sensor for HVAC and Cooling Towers, Voltage Outputs, 3% accuracy

The 3-wire HMS83 transmitter measures relative humidity and temperature in outdoor environments. Optional outputs dew point, wet bulb temperature and enthalpy can be easily selected by a single dip switch.

The HMS83 transmitter is optimized for outdoor use. It features an integrated solar radiation shield, which is a must for accurate humidity and temperature measurements in outdoor conditions. The transmitter is easy to install both on a pole and on the wall.

The excellent stability of the sensors and high quality materials guarantee that the HMS83 transmitter operates reliably and requires minimal maintenance. If needed, the Vaisala INTERCAP® sensor can be easily exchanged in the field with minimal downtime.

See all Outside Air (OSA) Transmitters

Analog outputs are preset at the factory to:

• Channel 1: 0 ... 10 V = 0 ... 100% RH
• Channel 2: 0 ... 10 V = -40 ... +60 °C (-40 ... +140 °F) T

The package includes:

• HMS83 transmitter
• Quick User Guide

Watch the installation video of Vaisala's HMS82 and HMS83 meters: