specification1. Measurement range: 0~100%2. Sensor type: contact combustion type3. Response time: about 10 seconds4. Working voltage: 3.6V5.Alam limit: 10% methane6. Working environment temperature: 0~50°C7. Low battery indicator: 3.3v8. Working current: 200mA9. Power: 3x1.2v NiMH batteryPackage Included1 flammable gas detector (without battery)1 USB cable1 x manualSpecification: General Certificate CE Package Weight One Package Weight 0.67kgs / 1.48lb One Package Size 27.3cm * 19.6cm * 6.6cm / 10.75inch * 7.72inch * 2.6inch Qty per Carton 30 Carton Weight 15.00kgs / 33.07lb Carton Size 76cm * 54cm * 18cm / 29.92inch * 21.26inch * 7.09inch Loading Container 20GP: 360 cartons * 30 pcs = 10800 pcs 40HQ: 838 cartons * 30 pcs = 25140 pcs