Model Number: RD-J-2526#-#9808 Brand Name: BECK Key Specifications/Special Features: 1. Novelty and fashion appearance2. DIY, easy installation, high security3. Standalone door lock, easy operation4. With emergency key5. External power capacityTechnical parameters:1. Suitable for door thickness: 35-50mm, standard2-3/8"(60mm)backsetIf you need2-3/4"(70mm) backset, leave us message when placeorder
2. 2 kinds of code: 1master code and 9user code
Give temporary code to friends, visitors, housekeepers or keep spare codes just in case

3. 3 mechanical keys included, you would never fumble for keys or change locks again

4. Requires4 AA 1.5V alkaline batteries(not included because of the air shipment)
Alarm when the battery is low
Service life of battery: approx 20,000 time(up to 2 years)
5. Materials: zinc alloy, anti-rust
6. With low battery alarm function, will alarm when low battery
7. Two kind of bolt: 50mm length and 60mm length

Note: default standard size is 2-3/8" (60mm) backset latch
2-3/4" (70mm) is available per requests (backset is the measurement from the edge of the door to the center of the knob hole)