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초소형 CO2 Module(S8)

S8 is a miniature safety switch that can be used in control and alarm applications. The sensor can be integrated in a wide range of different alarm applications where you want to detect CO₂, such as leakage detection.

Standard Specification
Operating Principle	Non-dispersive infrared (NDIR)
Measured gas	Carbon dioxide (CO₂)
Measurement range CO₂	0.04 to 2% Volume CO2¹
Accuracy	±0.02% volume CO2 ±3% of reading
Dimensions	33.5 mm x 20 mm x 8.5 mm
Maintenance	Maintenance-free²
Life Expectancy	> 15 years (in normal commercial environments)
Operation temperature range	0 to 50 °C
Operation humidity range	0 to 85% RH (non-condensing)
Power supply	4.5 V to 5.25 V
Power Consumtion	300 mA peak, 30 mA average
Serial communication	UART, Modbus protocol
Outputs
Alarm output (open collector)	Open >8500 ppm, closed
PWM output	0 to 100% duty cycle for 0 to 20 000 ppm

3. CO2 Engine S8(Super small CO2 Module)