The Ei428 is a mains powered relay module that triggers external devices, such as a strobe light or telecare device, if the alarms in the property activate.
The Ei650iRF RadioLINK+ Optical Smoke Alarm is best for detecting slow, smouldering fires commonly produced by electrical fires or sofas and is less likely to react to cooking smells if fitted in the hallway next to the kitchen.
The Ei603RF Alarm is activated by heat from a fire, not smoke, which makes it ideal for kitchen installations and other areas where there is normally some level of smoke or fumes and where smoke Alarms may be subjected to false alarms.
The Ei3028 is a dual Heat and Carbon Monoxide (CO) Alarm. It contains a proven electrochemical CO sensor to detect the presence of toxic levels of Carbon Monoxide as well as an independent fast acting Class A1 Thermistor sensor to detect dangerous levels of heat, hence eliminating the need for installing 2 products in areas where both types of detection would be required.