Features:
Standalone, single door control.
Low Priced, connect an electric strike and power supply and you're done
No Control Panels - Standalone Access Controller
Easy and simple to use
Has a flat back so it's easy to install on any flat surface
Operating Mode: Card only, Keypad only, Card with Keypad.
Card capacity is 1600 users.
Programmable door release time: 1~250 seconds
Access code can be added or deleted by keypad management.
Built-in electric buzzer for audible card entry and programming.
Data is protected even after power failure.
Machined housing in high durable.
ISO Mifare one /EM-ID thin card or keyfob optional

Specifications
Display: Red-power pilot, Black-access granted, Yellow-Beep
Keypad: 3 x 4 Flat membranes
Power: DC12V 3Amp
Color: White
Frequency: 13.56 MHz or 125 kHz
Temperature:(-10°C~70°C)
Humidity: 10%~90%RH
Dimensions: 86(L) x 86(W) x 18(H) mm
Box Dimensions: 150(L) x 140(W) x 40(H) mm
Weight :( 200g)
Reading range: Within 10cm
Warranty: 1 Year

Yijiamei Technology

YJ503W Stand alone offline access control