Temperature/Humidity/Differential Pressure Display Unit

A temperature, humidity, and differential pressure display unit is an integrated environmental monitoring device designed to simultaneously track and visualize three critical HVAC parameters on a single interface. These units are essential for maintaining strict environmental controls in sensitive facilities.

Measures room or duct temperature, relative humidity, and the pressure differential between two spaces (such as a cleanroom and an ambient hallway) to ensure proper airflow direction and containment.

Widely installed in pharmaceutical manufacturing cleanrooms, hospital isolation and operating rooms, semiconductor labs, and high-spec HVAC duct networks.

Includes programmable visual and audible alarms that trigger immediately if any parameter moves outside safe thresholds, preventing contamination or pressure failure.

Connects directly to Building Management Systems (BMS) or PLCs using standard protocols like Modbus RTU, BACnet, or traditional analog outputs (4-20mA / 0-10V).

Utilizes high-precision piezoresistive elements for micro-pressure measurements alongside capacitive sensors for stable, long-term humidity and temperature tracking.