Other accessories Control unit EA452Control unit for the EL554, EL555 and EL557. Control unit EA453Control unit for the EL874 and EL875. Control unit EA460Control unit for the EL648 and EL614. Control unit EA470Hi-O control unit. Delay unit EA810Delay unit Door contact EA500Door contact 1076D-G for profile doors. Door contact EA501Door contact 1072-N for wooden doors. Door contact EA502Door contact 1078-G for profile doors. Door contact EA503Door contact 1074D-N for wooden doors. Lead cover EA280Lead cover to cover cables as they travel from the door t… Lead cover EA281Lead cover to cover cables as they travel from the door t… Tester EA601Tester for Scandinavian locks Transformer EA70012 VDC, 4,5A transformer for electric locks. Transformer EA70124 VDC, 4,5A transformer for electric locks.