433.92MHZ wireless/wired security alarm/telephone/GSM network alarm system
China - Home Security - Home Security Alarm, 14 years ago, 1302 hits
Home/Commercial alarm system:
1. LCD display
2. Frequency: 433.92MHZ
3. Support 8 telephone and message, support CONTACT ID
4. Can identify alarm zone.
5. Sensor low power alarm, telephone line cut alarm, power line cut alarm.
6. With battery
wireless doorbell intercom
United States - Home Security, 14 years ago, 589 hits
This kind of video diaphone intercom systems are usually used in home, such as Villa, you can see the persons who are in front of your door even if they are just out of the fence or they are just at the downstair door of your building.
