Unlike other electric door strikes, which are set for fail-safe (locks when power is applied) or fail-secure (locks when power is removed), the Heavy-Duty Safe/Secure Electric Strike is field-programmable in seconds for fail-safe or fail-secure applicatio
Field-selectable for fail safe or fail-secure operation
Reversible non-handed design fits either right hand or left-handed doors
Shallow design for use with most metal doors
Powered by a solenoid, not a buzzer coil
Stainless-steel keeper for strength and long life

SD-995C Fail-Secure or Fail-Safe Electric Door Strike for Metal Doors, Static...