![](/images/flag/s/en.gif)
Read and retain carefully. If you are just installing this product the manual MUST be given to the householder. 1. Introduction The Ei420 can be used for two purposes: (1) It connects the Ei260ENRC Series Carbon Monoxide Alarms with RadioLINK Smoke Alarms and accessories. When the CO Alarm detects CO it will trigger all the other RadioLINK units and vice versa. It can also be used to connect Ei151TL, 154TL and 156TLH smoke/heat alarms to other RadioLINK units. Note: anytime the CO alarm is menti