used for portable and rapid detection of toxic and hazardous gas concentration, temperature and humidity measurement and alarm. The MS500 can detect gas concentrations in pipelines or confined spaces, atmospheric environments, gas leaks or various background gases such as ammonia or oxygen with high concentrations of single gas purity, and more than 500 types of gases.

Gases to be detected ||Range||Minimum reading||Response time T90:
Combustible gas (EX)||0–100% LEL||0.1% LEL||≤10 seconds
Methane (CH4)||0-100%LEL||0.1%LEL||≤10 seconds
Oxygen gas (O2)||0-30%Vol||0.01%Vol||≤10 seconds
Carbon monoxide (CO)||0-100ppm||0.1ppm||≤25 seconds
Hydrogen sulfide (H2S)||0-10ppm||0.001ppm||≤30 seconds
Sulfur dioxide (SO2)||0-10ppm||0.001ppm||≤30 seconds
Nitric oxide (NO)||0-10ppm||0.001ppm||≤30 seconds
TotalVolatileOrganic Compound gases(TVOC)||0-10ppm||0.001ppm||≤30 seconds