Duct Type CO2 and VOC Transmitter Designed for real time detecting carbon dioxide, air quality, temperature or relative humidity in air ducts. NDIR infrared CO2 sensor inside with special Self Calibration and up to 15 years lifetime. It makes CO2 measurement more accurate and reliable. Mix gases sensor with high sensitivity for VOCs results from new furnishings, wall coverings, office equipment, body odor, smoke, etc. Combined temperature and humidity digital sensor provide a high accuracy in full range. Provide up to 3 analog outputs (0~10VDC or 4~20mA or0~5VDC ) for CO2, air quality (VOC) and temperature or relative humidity. Optional Modbus RS485 communication interface. With LCD or without LCD . LCD display real-time measurements of CO2, air quality (VOC), temperature and relative humidity. Simple and smart design and installation of sensor probe with a water-proof and ventilated filter. Extendable probe meets more air duct systems. EU standard and CE-approval.

• Mix gases sensor with high sensitivity for VOCs results from new furnishings, wall coverings, office equipment, body odor, smoke, etc.