| Material | ABS + PC |
| Color | black |
| Voltage | 3.7-5V |
| Built-in lithium battery capacity | 720mAh |
| Host Battery Endurance | 2h use per day x 25days |
| Battery life | 2 years (1-2 hours per day, this is the normal commuting time) |
| Working temperature | - 20 ℃ ~ +80 ℃ |
| Storage temperature | - 30 ℃ ~ + 85 ℃ |
| Receiving frequency | 433.92MHz ± 50.00MHz |
| Detection Pressure Range | 0 ~ 5.0bar |








