DCS DCA 109 Alarm Disck Lock 10mm by Defend Security

Why You Should Buy This (Simple & Safe)

Ultra-Thick 10mm Pin: The massive 10mm locking pin is significantly thicker than standard locks providing superior resistance against bolt cutters and prying tools. Dual-Tone Alarm System: Equipped with a loud 110dB–120dB siren that triggers upon vibration, acting as a powerful psychological deterrent for thieves. Solid Steel Construction: Forged from high-grade stainless steel, making it nearly impossible to break via hammer strikes or drilling. Corrosion Resistance: The specialized powder-coated finish ensures the lock remains rust-free even after years of exposure to rain and sun. Smart Sensoring: Features an intelligent sensor that distinguishes between a real theft attempt and minor environmental vibrations (like wind) to reduce false alarms.

How to Use / Maintenance Guide

Disk Alignment: Align the 10mm pin with a hole in your brake disc that provides the tightest fit to minimize the "swing room" for a thief. Arming the Alarm: Push the lock cylinder down; a single loud beep confirms the alarm is armed. If the lock is moved, a warning beep sounds before the full siren goes off. Battery Management: If the alarm starts "chirping" or the sound becomes faint, replace the internal batteries (typically 6x LR44 button cells) using the provided hex key. Cleaning the Sensor: Every few months wipe the internal sensor area with a soft, dry cloth to ensure dirt buildup doesn't interfere with its sensitivity. Lock Cylinder Care: Apply a drop of dry graphite lubricant or specialized lock oil twice a year to the keyhole to keep the internal tumblers moving smoothly.

What's in the Box

• Alarm Disc Lock unit (10 mm strong pin).
• Built‑in 120 dB alarm system.
• Push‑down locking pin mechanism.
• Anti‑drill & anti‑pry security tech.
• Anti‑smash & anti‑saw protection.
• Keys (usually 2 pcs).
• User manual / warranty card.