QHT 24R is an intelligent combined sensor for Air Quality (VOC), Humidity (rH) and Temperature (T) with analogue outputs, Modbus and LCD display.
The Air Quality sensor itself is a Mix Gases sensor with high sensitivity for Volatile Organic Compounds (VOC) such as carbon dioxide, carbon monoxide, ammonia, body odours, breath air, cigarette smoke etc.
QHT 24R have three selectable outputs 0-10 Vdc, 4-20 mA or 0-5 Vdc for each parameter of Air Quality (VOC), Humidity (rH) and Temperature (T), the outputs are corresponding to 0 to 1000 ppm, 0 to 100% RH and 0 to 100 degrees Celcius.
The intelligent sensor QHT 24R have Modbus RS485 Network connection,
Modbus RTU at 19.2k and 9600 baud
LCD display show actual value for
Air Quality (VOC), Humidity (rH) and Temperature (T):
- Air Quality (VOC) LCD display reading is 0 to 1000 ppm:
- Humidity LCD display reading is 0 to 100% rH
- Temperature LCD display reading is 0 to 100 degrees Celcius
0 to 99 ppm = Fine
110 ppm = Fair
400 ppm = Poor
600 ppm = Bad
The intelligent sensor QHT 24R offers long term high stability and accuracy for all measured parameters; Air Quality (VOC), Humidity (rH) and Temperature (T)
QHT 24R can be used to ensure adequate ventilation while maximizing energy savings by ventilating at the optimum level, making these ideal for all types of ventilation in many applications.
QHT 24RS is same as QHT 24R but without set point buttons.
QHT 24RS is mainly used in schools, hotels, offices etc.
Download datasheet
Download CE declaration of conformity
CE declaration of conformity
Air Quality (VOC) + Humidity (rH) + Temperature (T) sensor,QHT 24R.pdf
Read Press Release
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