(1)One or 2 door stations can support up to 4 indoor phones.(2)Audio indoor phones are compatible.(3)Surveillance, intercom and remote door unlocking are main functions .(4)Color or B/W screens are op

1) Color CCD/CMOS camera, color TFT display, CRT monitor2) 30s sixteen-chord melody ring, 30s monitor if needed, 120s confidentialconversation3) One door station can be connected to four indoor phones

Features:(1) One door station can support up to 4 indoor phones. If needed, it can be extendedto 2 door station support up to 4 indoor phones(2) Hands-free indoor phone, remote door unlocking(3) LED i

Feature:(1)One door station can support up to 400 indoor phones.(2)LED in the door station provides a clear picture even in nighttime.(3)Network application is optional, you can connect other door sta

Features:1) Ten groups of auto-dial telephone numbers for help in an emergency2) Built-in 20 second rewritable voice memorizer3) Both wireless and wired detectors are compatible4) Wireless control to

This product can be applied in home, shops, offices, factories, farms, warehouses, banks, schools and hospitals. Uses remote control to operate, set up, cancel, or renew the user card information. All

Features:(1) One door station can support up to thirty-two indoor phones(2) Different door station panels are available(3) Remote door unlocking and three kinds of melody rings or Ding-Dong ring are a

Features:1) One door station can support up to four indoor phones2) Double Ding-Dong ring3) Surface-mounted design4) Remote unlocking5) Dimensions:a) Door station: WL-06DS3 128 x 96 x 25mmb) Indoor ph

Features:1) Aluminum door station2) Double ding-dong ring3) 1 door station can support up to 4 indoor phones4) Power supply: adapter or transformer5) Flush-mounted design for the door station6) Remote