1) Aluminum alloy shell

2) Two configurations: 1 outdoor unit to 5 indoor units

2 outdoor units to 5 indoor units

3) The "call" button to talk with indoor unit

4) Build-in LED for light compensation at night

5) Waterproof and dustproof

6) Wall mounting

7) Lock output:Dry contact

Visual angle 90o wide angle

Wiring 4-wire,

Cable condition 50m/165ft for RVV22#4x0.65mm

Ambient temperature -10oC~40oC

Weight 0.5kg

Dimensions 105x172x38.5mm