Brand new and high quality.
Mainly used for CO collection detection in family, factory, underground operation.
Detection Zone:10 to 1000ppmm.
Characteristic Gas:100ppmm co.
Sensitive Resistance:2K to 20K in 100ppm co.
Response Time: Recovery Time: Heating Resistance:31±3.
Heating Current: Heating Voltage:5.0V±0.2V /1.5±0.1V.
Heating Power: about 350mW.
Humidity: Oxygen Content:21% .
Size: 1.4inch x 0.9inch.