Original Factory Co2 Monitor Alarm - Carbon Dioxide CO2 NDIR Gas Detector Dual Channel Air Quality Monitoring-SDG11DF42 – Sunshine

General Description

The SDG11DF42 family of integrated thermopile sensor for NDIR (Infrared gas detection) is a dual channel thermopile sensor having an output signal voltage directly proportional to the incident infrared (IR) radiation power. An infrared narrow band pass filter in front of the sensor makes the device sensitive to target gas concentration. Reference channel provides compensation for all applicable conditions. The SDG11DF42 comprising a new type CMOS compatible thermopile sensor chip features good sensitivity, small temperature coefficient of sensitivity as well as high reproducibility and reliability. A high-precision thermistor reference chip is also integrated for ambient temperature compensation.

SDG11DF42 infrared CO2 sensor is a miniature universal intelligent sensor, which adopts NDIR theory to detect concentration of CO2 in air and has good selectivity, stable performance, long life, also is independent of Oxygen. The inside temperature sensor could be used for temperature compensation. This miniature infrared gas sensor is developed by the tight integration of mature infrared absorbing gas detection technology, micro machine workout and superior circuit design.

The sensor is widely used in HVAC refrigeration, air monitoring indoor, industrial-process control and safety protection, agriculture and animal husbandry. Portable CO2 Temperature Humidity Monitor Air Quality Monitor Infrared NDIR Detector Indoor Outdoor; air quality monitor that detects Carbon dioxide (CO2),Temperature and many other industry applications.

Features and Benefits

High responsivity, High Signal-Noise ratio

Small size, high reliability, 4-pin metal housing TO-5

Dual channel with reference channel for compensation

Operating Temperature Range: −40℃ to +125℃

Anti-electromagnetic interference

Applications

NDIR gas sensing

In door air quality

Greenhouse

Electrical Characteristics

Pin Configurations & Package Outlines