DABECO Datasheet: High Temperature Humidity Transmitter V251023 Page 1 of 3 Product introduction DB440 humidity transmitter is designed for duct installation in industrial applications where conditions are within the range of 0 to 100 % RH and -40 to 200°C T. The probe can survive exposure to temperature up to 200°C. Equipped with an aluminum enclosure and a 316L probe, This series transmitter is widely used under high temperature environments for measuring relative humidity, absolute humidity, temperature, volume ratio, mixing ratio and dew point in textile printing and dyeing, shaping and drying, papermaking, drying boxes, environmental chambers, hydrogen fuel cells etc industries. • Full-range measurement: 0~100% RH (relative humidity); • On-site calibration available; • Optional 4~20mA current signal output: For temperature, humidity, dew point, mixing ratio, absolute humidity, etc.; • Accurate measurement: The sensor is equipped with an original Swiss measurement chip, ensuring extremely high measurement accuracy; • Wide measurement range: Temperature measurement range up to -40~200°C; • Digital interface: Equipped with a RS485 digital interface, enabling functions such as real-time communication, precision calibration, and multi-point monitoring; • Customizable pressure resistance: With pressure resistance of 0.6MPa. Printing and dyeing plants, textile mills, rubber factories, paper mills, ceramic factories, stenter machines, steaming machines, tunnel dryers, high and low temperature test chambers, drying ovens, hydrogen fuel cells, etc.

DABECO Datasheet: High Temperature Humidity Transmitter V251023 Page 2 of 3

DB440 Datasheet：High Temperature Humidity Transmitter V251023 Page 3 of 3 Dimension With thread (mm)： Stem length: 400mm standard, upto 800mm