Under Desk/Counter Door Release Request to Exit Stations Under Desk/Counter Door Release Request to Exit Stations for remote control of doors and access controls. Key or push button controlled. Ideal for front desk/reception and hard-to-wire areas. TS-17 Under Desk Door ReleaseKey controlled door release, momentary push button, remot… TS-18, TS-19, TS-20 Under Desk Door ReleasePush button controlled door release, momentary and altern…