Carbon dioxide gas sensor (hereinafter referred to as the sensor) is an intelligent general-purpose, small sensor, non-dispersive infrared (NDIR) principle. It detects CO2 existing in the air, has good selectivity and no oxygen dependence, and has a long life. The sensor is a high-performance sensor produced by combining mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design.
Features
* Patent algorithm
* Small size, low power consumption, long life design
* Full range temperature compensation, maintenance-free
* A variety of interfaces are optional
Application
*Fresh air system
*Household Air Purifier
*Detector
*Smart home devices
Dimensions
Figure 1: Sensor Structure Diagram
Product Model: | DSH04M-M4KSDJ-1 |
Detected Gas | Carbon dioxide |
Operating Voltage | 4.0~5.5V DC |
Average current | 17 mA (@5V supply) |
Peak current | 180 mA (@5V power supply) |
Interface level | 3.3V |
Measuring range | Selectable within the range of 0~1%VOL |
Measurement accuracy | ±(50ppm+5%) reading value |
Output signal | UART，PWM |
Warm-up Time | 3 minutes |
Response Time | T90 < 45 seconds |
Operating temperature | 0~50℃ |
Operating humidity | 0~95% RH (non-condensing) |
Weight | 4g |
Lifespan: | >5 years |
Physical Dimensions | 40×17×10mm |
