The Ei428 triggers external devices as its relay activates when it receives an alarm signal from a compatible Ei Electronics device.
230V AC power supply with rechargeable lithium battery back up
Hardwire & Wireless Interconnect
1 Volt free contact output (NO/NC)
Continuous or pulse mode
Visual RF transmission indicator
Unique house coding feature
Tamper proof rechargeable lithium battery back up
Low power battery indicator