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 gramsSpecification: Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 30cm * 8cm * 5cm / 11.81inch * 3.15inch * 1.97inch Qty per Carton 336 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 336 pcs = 59472 pcs 40HQ: 412 cartons * 336 pcs = 138432 pcs