Dorcas electric strike Series 31 — grey AF/GG faceplate 25×250 mm for door openers, 8–12 V AC/DC.

• Series 31 — widely used replacement for existing door-release strikes
• Automatic with memory: stays unlocked after pulse until the door has opened and closed again
• Reversible — flexible (A/F) operation
• No manual unlock
• Faceplate 25 × 250 mm; short S-type forend in grey
• Housing approx. 90 × 20 × 28 mm (H × W × D); adjustable bolt with set screws
• Reference S-3103 / DB121GB