Supports electric lock control, alarm panel arming, reset and override. The MK Mortise Keyswitch supports electric lock control, alarm panel arming, reset and override when paired with any mortise cylinder 1-1/8" to 1-1/2". Product Features 1-1/8" Length, 26D Finish 5 Amp rated plunger switch Additional switch position on backing bracket allows another switch to be activated by turning the key in the opposite direction Backing bracket permits integration with any 1-1/4" [32mm] or 1-1/8" [28mm] mortise cylinder (not included) Cylinder available for use in the MK Includes anti-tamper screws SC Keyway Standard with 12 or 24 VDC bi-color LED General Contact Action : Momentary or Alternate Audible Indicator : Optional LED : Bi-color Device Options : Keyswitch Illumination : Yes Electrical Amps : 5 Switch : SPDT or DPDT Voltage : 12/24 VDC Weights & Dimensions Height : 4-1/2 Width : 2-3/4 Depth : 0-5/8 Application Mounting : Single Gang or Narrow Stile Environmental Maximum Operating Temperature (° F) : 110 Minimum Operating Temperature (° F) : 32 Weather Resistance : Indoor use only