1. Temperature range: -20~60 degrees Celsius / -4~140 degrees Fahrenheit2. Humidity range: 10~99%RH3. Illumination: 0~199999 LUX / 0-199.99 FC4. Altitude: -700~9000m5. Air pressure: 300~1200hpa6. Noise: 30~130dB7. Display: LCD8. Power supply: built-in 3.7V 400mAh lithium battery9. Material: ABS10. Size: 160x58x23mm11. Weight: 177gSpecification: Package Weight One Package Weight 0.21kgs / 0.47lb One Package Size 18cm * 8.5cm * 4.5cm / 7.09inch * 3.35inch * 1.77inch Qty per Carton 60 Carton Weight 13.50kgs / 29.76lb Carton Size 46cm * 37cm * 27cm / 18.11inch * 14.57inch * 10.63inch Loading Container 20GP: 580 cartons * 60 pcs = 34800 pcs40HQ: 1347 cartons * 60 pcs = 80820 pcs