The TS1000 series, our stainless steel compact version,offer high operating reliability in a small casework, ideal for sites where space is an issue. By receiving a signal from the access control system, or pushing button, it allows the entry of one person in a time. Entering into different directions are electronically controlled. Default mode is to lock the mechanism until a valid authorization signal is received. IIf you want to set one side free, you can adjust the mechanism. In case of emergency, the horizontal arm will drop to allow free passage