Aico Ei168RC RadioLINK Base Unit At the heart of the RadioLINK system are the Ei168 base units, which are fully compatible with the Ei140 Series of smoke and heat alarms. It is from here that radio signals are transmitted and received. An Ei168 base is required for all alarms in the system. Features Best Practice for single family dwellings, apartments and HMOs Easy-fit technology saves time and money on every installation Fixed cost installations Wire free interconnection and zoning capability Fully upgradable system - future proof Reliable interconnection Minimises risk of accidental mis-wiring No false alarms from normal electrical transients Range of optional system control devices RadioLINK uses tried, tested and proven radio tranceiver technology Use with Ei140 Series alarms - already proven in millions of installations nationwide Specification Mains powered with rechargeable 10 year+ lithium cell back-up Radio transceiver 868.499 MHz Unique Easi-fit design with integral terminal block Simple and secure house coding system Interference free What does Aico RadioLINK do? The Aico RadioLINK enables wireless interconnection between smoke, heat, and carbon monoxide alarms. Instead of hardwiring devices together, it uses radio frequency signals to link alarms, allowing them to communicate across a property. When one alarm sounds, all connected units activate simultaneously, improving safety and simplifying installation.