Specifications:

Model: BRJ-502D
Material: ABS+Electronic Components
Color: White 
Plug Type: EU Plug / US Plug (Optional)
Power Voltage: AC 100V~240V
Power Frequency: 50 / 60Hz
Rated Power: <4W
Alarm Concentration: 3%LEL~20%LEL
Alarm Loudness: ≥85dB
Working Temperature:  -10℃~50℃
Working Humidity: <97%RH
Item Size: 12 * 6.9 * 2.8cm / 4.72 * 2.72 * 1.1in
Item Weight: 93g / 3.28oz
Package Size: 13.5 * 7.5 * 5.5cm / 5.31 * 2.95 * 2.17in
Package Weight: 148g / 5.22oz

Package List:
1 * Gases Detector