Wireless Fire Alarm Systems

The alarms are linked by radio, so a fire detected by one can sound the alarm on the others without interconnecting cable. Aico RadioLINK uses a mesh network on 868.499 MHz, as on the Ei168RC base. Ajax detectors report over the two-way Jeweller protocol to an Ajax hub, and on the FireProtect 2 RB Heat/CO alarms are relayed across the system within the hub polling interval.

A home can use domestic wireless smoke and heat alarms, battery or mains powered, that are linked by radio and graded for dwellings under BS 5839-6. Battery models with RadioLINK+ built in, such as the Aico Ei650iRF optical smoke alarm and the Ei630iRF heat alarm, need no wiring and are Grade F1. The mains Ei146e is Grade D2 and can be linked by radio on the Ei168RC RadioLINK base.

A commercial wireless fire alarm is an EN 54 fire system in which addressable detectors and sounders can report to the control equipment by radio instead of cable. The Ajax 119921.275.WH1 is an EN54-certified, wireless addressable point smoke detector, and the 119918.273.BL1 is an EN54-5 and EN54-25 compliant heat detector. The 135976.358.BL1 range extender keeps EN54 Line devices connected across a large or complex facility.

A RadioLINK system has a limit of 12 devices, so count the alarms, the controller, any strobe and any relay module within that number. The Aico Ei168RC RadioLINK base supports up to 12 RadioLINK devices. The Ei171RF strobe light also works with up to 12 compatible devices.

Fit a heat alarm, because steam and cooking fumes can set off a smoke alarm. The Ei144e, Ei3014 and Ei630iRF use a thermistor sensor that triggers at 58°C, and the Ei3028 adds carbon monoxide detection for a kitchen or garage. On EN54 systems, the Ajax FireProtect heat detectors are intended for places where smoke detection is unsuitable.

Yes, carbon monoxide alarms can share the radio link with the fire alarms. The Ei208WRF is a battery CO alarm with RadioLINK+ built in and a sealed 10-year lithium battery, and the Ei3018 mains CO alarm connects through the Ei3000MRF module. The Ei3028 combines heat and CO detection in one mains alarm for a kitchen or garage.

A fire alarm for deaf people gives a visual or tactile warning, such as a strobe light or a vibrating pad, when a linked alarm is triggered. The Aico Ei171RF RadioLINK strobe light uses a Xenon strobe with a 0.8Hz flash rate and runs on 230V AC mains with a rechargeable battery backup. The Ei174 vibrating pillow pad connects with the Ei171RF to give strong, pulsed vibrations in an alarm.

Use a wireless alarm controller, a wall-mounted switch that tests the linked alarms, locates the one that triggered and silences nuisance alarms from one point. The Aico Ei450 RadioLINK alarm controller has red and amber LEDs for fire and CO activations and a sealed 10-year lithium battery. The Ei450 pairs with the system by House Coding, so it is completely wire-free.

Yes, some mains alarms can be linked by radio by fitting a radio interconnect base or module, without running new interconnect cable. The Aico Ei168RC RadioLINK base adds wireless interconnection to 140e Series alarms such as the Ei146e and Ei144e and has a rechargeable lithium backup battery. For the 3000 Series, a SmartLINK module enables wireless connectivity on alarms such as the Ei3016.

Yes, a relay module connected to the alarms switches volt-free contacts when an interconnected alarm sounds, which can start other equipment. The Aico Ei128R and Ei128RBU have volt-free NO/NC contacts rated 240V AC / 5A with pulse or continuous modes, for equipment such as lights, extractor fans or telecare systems. The Ei128RBU adds a 10-year rechargeable lithium battery backup.