4 Zone Home made alarm system.
Replace the light bulb with a 12 Volt 104db siren.
Add more trip/door switches for more zones.
Max operated Voltage: 14.5 VOLTS
Max operated Load/Ampers: 8 AMPERS
Relay: 12 Volt Coil that relay 240 Volt 30 Ampers
Battery: 12 Volt Deep Cycle Marine Battery
