1. Widely used in gas pipeline leak detection, household gas prevention, gold mining, tunnel mine operations, oil and gas extraction, hazardous goods storage warehouses, etc.2. It is convenient for users to safely detect various combustible gases, such as: methane, carbon monoxide, gasoline, ethylene oxide, etc.3. Range: 0-1000PPM4. Sensitivity: 500PPM5. Battery: 2x1.5V AAA batteries (not included in this product)6. Response time: about 5s7. Voltage: 2x1.5V AAA8. Using high-precision gas-sensitive semiconductor sensors, capable of measuring various combustible gases9. Can provide more accurate combustible gas leak detectionSpecification: Package Weight One Package Weight 0.14kgs / 0.32lb One Package Size 25cm * 7cm * 6cm / 9.84inch * 2.76inch * 2.36inch Qty per Carton 80 Carton Weight 12.20kgs / 26.90lb Carton Size 58cm * 52cm * 32cm / 22.83inch * 20.47inch * 12.6inch Loading Container 20GP: 276 cartons * 80 pcs = 22080 pcs40HQ: 641 cartons * 80 pcs = 51280 pcs