Aico Surface Mount Kit for 2100 160RC amp 140RC Series Alarms Ei127 Aico Surface Mount Kit for 2100 160RC 140RC Series Alarms Ei127The Ei127 is a Surface Mount Kit for use with 2100 160RC and 140RC Series Smoke and Heat Alarms. It allows additional space for wiring connections. It has 3 x 1625mm trunking knock outs for surface wiring.Key FeaturesFits under any 2100 160RC 140RC series alarms3 way connector block used for wiring mains and interconnect GBP 4.15 1