SV-RL-0510(2.4GHz/1.8GHz Wireless Digital Two-way Doorphone)
1. Frequency :2.4GHz and 1.8GHz for option .
2. Wireless cryptographic door release technique, one million codes to avoid the mistakes.
3. Wireless two-way intercommunication between indoor unit and outdoor unit.
4. Digital signal transmission promises chear voice, anti-interference and private talking.
5. Working distance is around 150m.
6. Waterproof(IP44) outdoor unit .
7. Raincover for the outdoor unit is available.
8. Working status indication.
9. AC power supply