1. Size: 75 X 30 X 78mm
2. Weight: one set with a net weight of 0.08 kg, and one box with 2 sets of 0.19 kg
3. Power source: solar panel and nickel-metal hydride battery
4. Working environment: outside area under direct sunlight.
5. Working temperature: -20 --- + 60 degrees Celsius
6. Operating humidity: 100%
7. Atmospheric pressure: 86KPa --- 106KPa
8. Storage temperature: -30 --- + 70 degrees celsius
