DPT-CR-MOD is a differential pressure transmitter designed specially for cleanroom monitoring. In addition to differential pressure, the device enables monitoring temperature and relative humidity. A 0…10 V voltage input of an external humidity and temperature transmitter (for example Siro-rH-T) can be connected to the input terminal of the device. In this case, all three measured values (differential pressure, relative humidity, temperature) can be shown simultaneously on the display. Alternatively, a passive temperature sensor can be connected to the input terminal. DPT-CR-MOD is compatible with Modbus serial communication protocol.