The DM700KY-N is a high quality, yellow plastic manual call point with key switch. The key switch has 2 positions, with the key being trapped in one position and removable in the other. Changing between these positions require the turn of the key through a 90° angle. It offers three electrical connections, which already come fitted with flying leeds. One of these connections are common, while the tuning of the key result in the change over between the other two. The robust switching device comprises a main housing and escCarrierheon plate. It is fitted to the plate which simply snaps into the main housing and is permanently located in place with fixing screws. All units are supplied with 2 sturdy keys.