1、MULTI FUNCTION GAS DETECTOR: This device detects environmental temperature and flammable gases, featuring a backlit switch button and a wide display screen. 2、DUAL COLOR BACKLIT INDICATION: When the detector senses flammable gas, the analog bar increases with the gas concentration, the buzzer sound accelerates, and the motor vibration intensifies. 3、WIDELY APPLICABLE: Natural gas detector is suitable for various settings including home, commercial activities, and industrial production. 4、PORTABLE: This lightweight gas detector is easy to carry and use in different locations. Take with confidence! 5、VERSATILE AND RELIABLE: Provides accurate and timely detection of environmental temperature and flammable gases, ensuring safety in various environments. Item Type: Combustible Gas Detector Material: ABS Battery: 1.5V AAA battery x 2 (shipped without battery) Response Range: 300 to 10000PPM Display: LCD display Sensor: Gas sensitive semiconductor Sampling Rate: 1 second Alarm Method: Analog bar, backlit, motor vibration and buzzing 1 x Detector 1 x Manual