Bosean BH-4M H2S O2 CO LEL 4 In 1 Multi Gas Detector with pump BH4M

INTRODUCTION * The new GUI design scheme is adopted, the interface display is more comprehensive, and the operation is more user-friendly. * Natural diffusion or pumping gas detection methods can be selected, and 1 to 4 gas types can be detected at the same time. * Using miniature vacuum sampling pump, stable flow, long life and low noise. * It adopts a 2.0-inch high-definition color screen with a wide viewing angle of 120 degrees. * The three-button operation is simple and intuitive. * Support a variety of extended functions to meet users #39; different product applications. *Sound, light, vibration and display four alarm modes. *It supports switching between real-time gas concentration data display and real-time curve display mode. *It supports multi-point calibration, up to 5 points calibration. *Multiple data storage methods, alarm storage, manual storage. *Support Chinese and English switching, other languages can be customized. *Large-capacity (2500mAh) rechargeable lithium battery, which can last longer. *The USB interface adopts Type-C interface, and there is no fear of plugging in front and back. *Support TWA, STEL alarm function. Gas sampling method: Pump suction type, natural diffusion type Response time: Pump suction type T90＜30s, natural diffusion type T90＜60s Detecting gas: Support 1~4 kinds of gas detection Accuracy: ≤±5% F.S. Indication: 2.0 inch color display, resolution 320*240 Alarm methods: Acousto-optic vibrating display quadruple alarm, TWA/STEL alarm Data communication: Support USB to connect to the upper computer of the computer to view data System language: Support Chinese and English switching; other languages can be customized Working environment: Temperature -10℃~50℃; humidity lt;95%RH (no condensation) Power Source: DC3.7V (Lithium battery capacity 2500mAh) Charging way: Type-C charging interface, 5V/1A