Features:Indoor Unit:7inch TFT LCD indoor unit which has no radiation, low power consumption can provide high definition widescreen images.Equipped with hands-free intercom function, electrically controlled unlock function, monitoring function.The image brightness, chroma, ringtone volume and intercom volume of the indoor unit are adjustable.12 kinds of music ringtones are ready for you, eliminating your annoyance of always hearing monotonous doorbells.Outdoor Unit:The outdoor unit with anti-oxidation aluminum panel which goes through wear-resistant surface treatment has HD 700 TV lines camera to guarantee no color cast.Super rainproof, IP55 waterproof level, wall-mounted installation is simple and convenient.Power-on unlock and power-off unlock, can be connected to exit switch, support to set delay.Password/fingerprint/remote control unlock function, blue button display, with IR night vision function.NO Lock:NO lock can be directly connected to the outdoor unit with a power supply so that the lock is able to operate without an additional power supply, and its installation is simple and convenient.Specification:Doorbell:Material: ABS + PMMAOptional Plug Type: AU Plug, UK Plug, EU Plug, US PlugSwitch Power Supply: AC110V-240V--50Hz DC15V1.2AWhole Unit Current: < 800mACall Delay Time: 120S10%Monitoring Delay Time: 60S10%Ringtones: 12 ringtonesCamera Sensor: 700 TV linesLens: 3.6mm 92IR Night Vision: SupportWaterproof: IP55Indoor Unit Size: Approx.250*150*24mm/9.8*5.9*0.9inOutdoor Unit Size: Approx.155*100*55mm/6.1*3.9*2.2inNO Lock:Voltage: DC12VCurrent: 200mAHolding Force: 500kg/1102lbFault protection, NO mode (locked when not supplied with power)Use 2-wire non-polarized connection to access control or export equipmentSignal Output: NoPackage List:1 * Outdoor Unit2 * Indoor Unit2 * 15V/2A Power Supply2 * 5m 4-core Connection Cable1 * User Manual1 * Remote Control (Built-in 1 23A 12V battery)1 * NO Electric Strike Lock (With a user manual)