Hard Wired Relay Module With Battery Back Up, 143mm x 32mm, White

• Rechargeable Lithium battery back-up
• Volt free contacts as supplied for multiple use
• Can be configured to switch a 230V or 24V device
• Trunking knock-outs for easy and neat wiring
• Additional connectors for ease of wiring
• Continuous or pulse operation
• Fits discreetly behind any Smoke and Heat alarm
• 5 year guarantee

The Ei128RBU is a Relay Module that runs on a 230V AC mains power and has built-in tamper proof Lithium cells that act as a battery back up in the event of mains failure. These rechargeable lithium cells are designed to have a 10-year life and outlast the life of the module itself, whilst providing up to 2 months of operation without mains power.

For use with 3000, 2110e, 160e and 140RC Series alarms (and 260RC Series Carbon Monoxide alarms when using the Ei128COV cover).