Smoke Sensor

 

Sensitive material of GW gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. GW gas sensor has high sensitity to LPG,Propane and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different application.

 

Features:

●Long life and low cost 

●Good sensitivity to Combustible gas in wide range

●High sensitivity to LPG, Propane and Hydrogen

●Simple drive circuit

Application:

●Domestic gas leakage detector

●Industrial Combustible gas detector

●Portable gas detector 

●Domestic gas leakage detector&Industrial Combustible gas detector


Standard conditions Preheat time ≥48 hour ; Temperature 65%±2% ; Humidity 20±2

Part Number

Picture

MOQ

(PCS)

circuit conditions

Standard test conditions gas sensitive element characteristic

Detection Gas

Concentration

(ppm)

Loop

Voltage

VC(V)

Heater

Voltage

VH(V)

Heater

Resistance

(25) RH(Ω)

Heater
consumption

PH(mW)

Sensing
Resistance

RS(KΩ) 

 

GW2-QM

1,000

24

5±0.2

31±3

900

2~20

Combustible

 gas and smoke

300~10000

  GW3-QM

1,000

24

5±0.2

31±3

900

2~20

Alcohol gas

0.04~4 (mg/L)

  GW4-QM

1,000

24

5±0.2

31±3

900

2~20

Natural gas

Methane

300~10000

  GW5-QM

1,000

24

5±0.2

31±3

900

2~20

LPG

Coal gas

Methane

300~10000

 

 
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