Feature: 1. Good Performance: The detector adopts a high performance microprocessor, which can stably detect the weak signal changes of the sensor 2. High Accuracy: Quick response, high accuracy, with sound and indicator light alarm, can quickly locate the gas leakage location, safe and efficient 3. High Quality Material: Made of high quality ABS, light weight, wear resistant and corrosion resistant, and long service life 4. Battery Powered: The green light flashes when the battery is low, and the yellow light flashes when the fault occurs, which is convenient for timely discovery 5. Wide Application: It is suitable for the detection of gas and natural gas leakage in households, restaurants, factories, and industrial places Specification: Item Type: Gas Leak Detector Model: AP388 Material: ABS Battery: 2 x 1.5V AA (battery not included) Purpose: Suitable for gas and natural gas leak detection in households, catering industry, factories, industrial places. Detection Gas: natural gas (Gas-CH4), liquefied gas (LPG) and other combustible gases Power on self test time: