1: Operating voltage: 15V (entire system power supply) or extension of power line
2: Connection model: 2 core cable (no polarity)
3: Call: 60 seconds
4: Credit cards unlock (optional)
5: Wring used in all wire transfer RVV2 x 0.5
6: Simple and convenient to connect, non-polarized
7: Can be equipped with multi-extension
8: Electric convenient, as long as extension of system or able for power supply