Description
| Key | Call, bill, cancel |
| Power Supply | DC 12V/23A battery |
| Transmission Distance | 100m |
| Compatibility | Wireless Receiver and Signal Repeater |
| Function | 100% Water Resistant, High Intensity LED |
| temperature | 0 – 45 ˚ |
| humidity | 10 – 80 % |
| Dimension | 6cmx2cm |
