Vaisala HMD70 Relative Humidity and Temperature transmitters
offer an economical solution for general purpose RH&T measurement in HVAC and building automation applications. The Vaisala HMD70 incorporates HUMICAP technology for a reliable, stable and accurate indication of relative humidity and temperature in duct systems designed for building ventilation.
Vaisala HMD70 transmitters are suitable for many industrial humidity monitoring applications. The incorporated HUMICAP sensor is also offered in many more expensive Vaisala RH&T transmitters for its resistance to chemical attack and established stability.
A unique feature of the Vaisala HMD70 duct mount transmitter is the ability to remove the electronics without removing the unit from the duct itself. Additionally calibration can be checked onsite with a Vaisala HM70 portable RH&T sensor. Adjustment is simply carried out via a potentiometer until reading matches that of the portable reference sensor.
The duct mounted Vaisala HUMICAP® Humidity and Temperature Transmitter HMD70Y is designed for monitoring relative humidity and temperature in energy management systems in buildings. The combination of high accuracy, stability and reliable operation makes this product the ideal choice for demanding applications.
On-site calibration has been made easy with the high precision trimmers and compatibility with the Vaisala HUMICAP® Hand-held Humidity and Temperature Meter HM70.
The HMD70Y has user selectable 0…1 V, 0…5 V or 0…10 V outputs corresponding to 0…100%RH and -20…+80 °C (-4…+176 ° F) temperature.