Features:
1) 2.4GHz wireless
2) 4" flat B/W CRT
3) Metal outdoor unit
4) View the visitors at the door
5) Screen auto turn off
6) Full duplex conversation
7) Door release operation (electric door strike required)
8) Door chime
9) Minimum illumination 0.1 lux on object up to 19 feet away
10) Built-in 6 infrared LED for low light observation
11) Weatherproof camera with aesthetic housing
12) Transmit distance: 30m (open area)
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