HES 1500-630-LM Grade 1 Electric Strike, For Cylindrical or Mortise Latchbolt Locks 12/24 VDC,

Grade 1 Electric Strike, For Cylindrical or Mortise Latchbolt Locks, Auto-Sensing 12/24 VDC, Field Selectable Fail Safe/Fail Secure, Body Only, Lock Monitor, Satin Stainless Steel