JES-MS400W-4Portable toxic and harmful gas detection and alarm device is used for portable and rapid detection of toxic and harmful gas concentrationIn situations where temperature and humidity are measured and an alarm is triggered for exceeding the standard.adopt2.31-inch high-definition color screen with real-time display of concentration, using imported brands such as Honeywell, Nippon Genshin, CITY, Alpha, Dynament, Membrapor, etcGas sensors,The main detection principles include: electrochemistryInfrared, catalytic combustion, thermal conductivityPID photoionization.Advanced circuit design, mature kernel algorithm processing, and multiple software works and appearances have been achieved.MS400WIt can detect gas concentration in pipelines, confined spaces, and atmospheric environments, detect gas leaks or high concentration single gas purity with various background gases such as nitrogen or oxygen, and detect gas types exceeding500 types