Aico Ei146e Smoke Alarm , White

230V Mains powered with 9V alkaline battery backup (included) Easi-fit base (included) for simple alarm head replacement Loud Alarm - 85dB(A) at 3m with Built in test / hush button Interconnectable with all Aico 230V smoke alarms Not compatible if a control switch is included in the circuit, Manufacturer: Aico