Relay Modules
- $129.22SKU: 1597-010
DoorKing 1597-010 Replacement Board for 1812 Slave Keypad
- Replacement Keypad Interface Board
- Use with all Secondary Keypads
$129.22Low Price Guarantee - $101.92$101.92Low Price Guarantee
- $913.64SKU: 1982-010
DoorKing 1982-010 Relay Board for 1816 System
- Compatible with DoorKing 1816 System
- Supports up to 12 phone lines
- Essential for telephone entry systems
- High-quality relay board
- Easy installation and integration
$913.64Low Price Guarantee
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