- Built in sounder to give a sound output of minimum 85dBA at 3 metres.
- Interconnection capability such that if one alarm sounds all interconnected alarms shall sound. Up to 36 units - ionisation, optical or heat alarms, shall be able to be interconnected in this way providing a relay is not used.
- Automatic self test feature - chamber is tested every 40 seconds and unit bleeps (without red LED flash) if degraded.
- Manual test button to test circuitry, sensor and horn and to activate all interconnected alarms in the system.
- Automatic reset facility of alarm function.
- Separate green LED mains indicator light to confirm integrity of mains power supply.
- Separate red LED under test button to flash every 40 seconds to indicate auto test, and to flash rapidly in alarm condition.
| - The sounder to include a resonator or "trumpet" at least 30 mm in length and reaching to lid of the outer casing in order to amplify the sound.
- Foam gasket built into surface mount plate to prevent dust ingress into the rear of the unit.
- Non reversible mains connector with 200 mm lead and wiring instruction label.
- Ambient temperature range 5°C to 44°C (39°F - 104°F). 0% to 90% relative humidity.
- Dust cover to be fitted to the alarm to protect it from contamination during installation.
- Two separate sets of instructions - one
- Anti tamper locking device to prevent unauthorised removal of the alarm from the mounting plate without the use of a tool.
- Low power cell warning signal to operate with or without mains power present.
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