1Good Performance: The detector adopts a high performance microprocessor, which can stably detect the weak signal changes of the sensor 2High Accuracy: Quick response, high accuracy, with sound and indicator light alarm, can quickly locate the gas leakage location, safe and efficient 3High Quality Material: Made of high quality ABS, light weight, wear resistant and corrosion resistant, and long service life 4Battery 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 5Wide Application: It is suitable for the detection of gas and natural gas leakage in households, restaurants, factories, and industrial places 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:1 x Gas Leak Detector(battery not included) 1 x Manual 1. Do not short circuit the battery contact metal sheet2. The probe (sensor) of the instrument cannot be cleaned. Please prevent water, oil, dust, organic solvents, etc. from entering the probe3. Do not use this instrument in a high concentration flammable gas environment.4. Mist or gaseous organic solvents may also cause instrument reactions, so please eliminate the influence of organic solvents when confirming the source of leakage5. Perform power on self test to warm up6. When the power indicator is flashing, it indicates that the instrument is in a low power state. It is recommended to replace the battery to avoid affecting the measurement7. If the instrument has not been used for a long time, the battery should be taken out