Features: Outdoor unit waterproof grade: IP66 Wireless doorbell function: The indoor unit has a built-in doorbell, and an external doorbell can also be used. Luminous keyboard light: outdoor unit with keyboard light, easy to operate at night Temporary User: Temporary visitor card and password can be set Strong encryption technology: TEA+ rolling code encryption algorithm. Safe and reliable technical parameter: Standby current: keyboard machine Less than 10uA: controller Less than 20mA door button Less than 10uA Working current: keyboard machine Less than 80mA: controller Less than 50mA door button Less than 30mA Keyboard battery life: about 12 months with 20 door openings per day Door open button: open the door 20 times a day for about 12 months User capacity: 1000 ordinary users + 100 temporary users Card reader type: ID/IC Card reading frequency: 125KHz/13.56MHz Communication frequency: 433MHz Communication distance: 30 meters (related to the use environment) Unlock current: 2A Working temperature: -40~+60 Keyboard size: 134 x 48 x 25mm Open button size: 80 x 38 x 16mm Controller size: 134 x 85 x 31mm Remote control size: 61 x 29 x 12.5mm Relay Mode: Door Open Mode or Access Control Mode Anti-dismantling of the machine: When the machine is dismantled by the bad guy, the outdoor unit and the indoor unit will alarm at the same time Other functions: external door sensor / external alarm / external doorbell Colour: Black Material: ABS+Metal Package Contents: 1 x Wireless Controller 1 x Wireless keyboard machine 1 x Wireless Remote A 1 x Wireless Remote Control B Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.