[shortdesc]Application:It is suitable for the detection of carbon monoxide leakage for residential use or industrial use.
Feature:MEMS technology, Strong construction,Small sizes and low power consumption,Fast response and resume
[/shortdesc]
Production Description:
MEMS carbon monoxide gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.
Feature:

MEMS technology, Strong construction
Small sizes and low power consumption
Fast response and resume
Simple drive circuit
High sensitivity to CO gas

Application:
It is suitable for the detection of carbon monoxide leakage for residential use or industrial use.
Technical Parameters：

Part No.			GM-702B
Sensor Type			MEMS CO Gas Sensor
Standard Encapsulation			Ceramic
Detection Gas			CO gas
Detection Range			5~5000ppm (CO)
Standard Circuit Conditions	Loop Voltage	VC	≤24V DC
	Heater Voltage	VH	2.5V±0.1V AC or DC (high temp.) 0.5V±0.1V AC or DC (low temp.)
	Heating Time	TL	60s±1s (high temp.) 90s±1s (low temp.)
	Load Resistance	RL	Adjustable
Sensor character under standard test conditions	Heater Resistance	RH	80Ω±20Ω（room temperature）
	Heater consumption	PH	≤50mW
	sensitive materials resistance	RS	1KΩ～30KΩ(in 150ppm CO)
	Sensitivity	S	R0(in air)/Rs(in 150ppmCO)≥3
Standard test conditions	Temp. Humidity		20℃±2℃；55%±5%RH
Standard test conditions	Standard test circuit		VH: 2.5V±0.1V (high temp.) 0.5V±0.1V (low temp.) VC: 5.0V±0.1V

10 pcs GM-702B MEMS Carbon Monoxide Gas Sensor