Wireless Repeater Module with 10-year Lithium battery back-up

The EIB420RF RadioLINK™ Repeater Module is a standalone repeater module designed for use with RadioLINK™ enabled alarms and accessories.


The EIB420RF is mains powered and has a built-in tamper proof rechargeable lithium battery that acts as a battery back-up in the event of mains failure. The rechargeable lithium battery is designed to have a minimum 10-year life and outlast the life of the module itself.

The repeater module uses advanced transceiver and signal coding technology to ensure robust and reliable RF signalling.

The EIB420RF can be interconnected to either Brooks RadioLINK™ devices or hardwire interconnected to Brooks mains powered Smoke/Heat alarms. The repeater supports the hybrid functionality, i.e. hardwire and RadioLINK™ activate each other.

The Brooks Wireless Repeater Module has the following features:

  • Mains Powered with a 10-year rechargeable lithium battery back-up
  • Stand-alone unit designed for use with RadioLINK enabled alarms and accessories
  • Up to 12 alarms and devices can be interconnected
  • Visual RF transmission and power indicators
  • 5-year guarantee


Model Number: EIB420RF
Carbon Monoxide:
Mains Powered:
Battery Back-up: 10-year Lithium rechargeable, non-removable
Battery Powered:
Low Battery Warning Alert:
Test/Reset Button:
Interconnect Capability: Up to 12 RadioLINK devices can be interconnected
Warranty: 5-year guarantee
Approvals: AS/NZ 4268

Related Information:

Which home smoke alarm is right for you?

Our easy 3-step selector tool can help you find the right smoke alarm for your home.

Get started

How will the smoke alarm be powered?

Frequently asked questions

Find answers to the most frequent questions our customers are asking about smoke alarms. Check out our frequently asked questions