Gas: LPG，Methane，Coal gas 
Detection range: 300 to 10000 PPMM
Characteristics of gas: 1000 PPMM isobutane
Sensitivity: R in air/Rin typical gas !#!gt!*!=5
Sensitive resistance: 1k ohm to 20k ohm in 2000PPM isobutane
Response time: !#!lt!*!=10s
Recovery time: !#!lt!*!=30s
Heat resistance: 31ohm +/- 3ohm
The heating current: !#!lt!*!=180mA
The heating voltage: 5.0V +/- 0.2V
Heating power: !#!lt!*!=900mW
Measure the voltage: !#!lt!*!=24V

Working conditions:
Ambient temperature: -20? ~ + 55?
Humidity: !#!lt!*!=95%RH
Environmental oxygen content: 21%

Storage conditions: 
Temperature: -20?~ +70?
Humidity: !#!lt!*!=70%RH