Smart Sensor AP388 Combustible Gas Leak Detector Natural Gas Alarm

1. Material: ABS2. Detection gas: natural gas (Gas-GH4) liquefied gas (LPG) combustible gas, etc.3. POST time: within 25 seconds4. Response time: within 20 seconds5. Alarm response range: 500ppm (CH4 methane) red light on6. Power supply: 1.5V 2 AA batteries (not included)7. Automatic shutdown without alarm after 5 minutes8. Highly sensitive sensor, which can stably detect the weak signal change of the sensor9. LED alarm light, the red light is on when gas is detected, the battery needs to be replaced when the green light is on, and the fault is indicated when the yellow light is on10. Dimensions: 263x36x36mm11. Weight: 60 grams