RadioLINK Alarm for the hearing impaired.
• Ei170RF - Strobe and Pad
• Ei171RF - Strobe only
• The alarms are triggered and a signal is sent to the alarm for hard of hearing
• The strobe flashes and pad will vibrate to wake sleeping occupants
The strobe unit connects to the smoke alarms via RadioLINK signals so there's no extra wiring needed.
BS 5839-6:2013 says that there must be warning for people with hearing impairment.