Real-time voice prompt when the alarm value is reached, the indicator light is on, strong vibration and buzzing sound, the alarm sound is as high as 85 dB Adapt to a variety of environments: This product has a built-in water and dust filter to prevent damage to sensors and instruments due to water vapor and dust. It can be used in high humidity dusty environments. Standard USB fast charge to travel at full power at any time, 12 hours battery life to meet your work needs Natural: Diffusion method is used to detect gas, and the high-definition color screen is clear and impressive, and the data is clear at a glance. First-class industrial design, the valve body is made of high-strength aluminum, wear-resistant, high corrosion resistance and turbidity, suitable for complex and harsh industrial environments;, Manufacturer: LLAWQSM