Brand：
$232.00
SE
SMART SENSOR ST8900 Gas Detector
ElectrochemistryOxygen/Carbon Monoxide/Hydrogen Sulfide/Combustible GasOxygen: 0~30% vol; Carbon monoxide: 0~999ppm; Hydrogen sulfide: 0~500ppm; Combustible gas: 0~100% LEL
Can simultaneously test oxygen, carbon monoxide, hydrogen sulfide, combustible gas four gases, using diffusion sampling, optional pump, with sound and light shock alarm function.
If you don't know how to choose "Gas detector", please consult customer service.