Features WITH BACKLIGHT: Ambient temperature and combustible gas detector, multi purpose, backlight switch button TWO COLOR BACKLIGHT WARNING: When the detector detects combustible gas, the analog bar increase with the increase of gas concentration, the buzzer sound accelerate with the increase of concentration, and the motor vibration strengthen with the increase o FAST AND EFFICIENT: The sensor adopt NTC sensor and gas sensor, and the sampling rate is 1 second CLEAR DISPLAY: Gas leak detector with large wide LCD display, automatic shutdown time of about 5 minutes APPLICABLE SCENARIO: Combustible gas detector is widely used in family life, commercial activities, industrial production and other fields Specification: Item Type: Combustible Gas Detector Material: ABS Display: LCD display Sensor: NTC sensor, gas sensor Sampling Rate: 1 Second Alarm Mode: Analog bar, backlight, motor vibration and buzzer Automatic Shutdown Time: About 5 minutes Working Temperature Humidity: 0-40℃, 0-90%RH Power Supply: 3.7V 400mA lithium battery Package List:1 x Combustible Gas Detector1 x User Manual1 x USB Cable Package List 1 x Combustible Gas Detector 1 x User Manual 1 x USB Cable