DK-9821 is a single relay output keypad. It is a simple function keypad with easy programming method. The keypad has two operation mode, which is Single-User Mode and Multi-User Mode.

The keypad compatible with two operation modes:

(1) Single-User Mode – Simply require only one each user code for door open. One Code Mode.

(2) Multi-User Mode – Up to 100 user code for door open. The code can have length of 4-8 digits for higher security.

Features:

• Single relay output for door lock and equipment control
• Optional single or multi-user mode
• Different levels of user code mode
• Interlock for dual keypad installation
• Duress output for external device
• Visitor code programable with time
• Output relay change be toggle or time mode
• Built-in tamper switch
• Suitable installation on wall or mounting on gooseneck post