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Ei181 Low Voltage Ionisation Smoke Alarm • EI Electronics
TES Lighting - The Ei141RC Ionisation Smoke Alarm is a mains powered alarm with a 9V Alkaline battery back-up and contains a proven long life Ionisation smoke chamber. Different alarms sensors work
Americium in Ionization Smoke Detectors | US EPA
Photoelectric vs Ionisation Smoke Alarms - Detector Inspector
Ionisation 230-volt Smoke Alarm with 9-volt Alkaline battery back-up