DESi DAK – Alarmed Lock for Steel Doors
A revolutionary security solution designed for steel doors
What is DESi DAK?
This device, which looks, installs, and operates just like a standard steel door lock, stands out with its unique alarm features, for which an international patent application has been filed. The appearance, size, and mechanical properties of the device are the same as the Kale Monoblok 252R, HOK CC9001, and DAF 571.60 locks, widely used in Turkey's steel doors. It can be installed on doors that already have these locks by simply unscrewing and replacing them. The operation is identical to a standard cylinder lock: locking and unlocking are done using a key from the outside and a key or handle from the inside. What sets this device apart is its built-in dual-protection alarm system, which activates when the door is locked with three full turns.
Two Different Sensors
1. Adjustable Sensitivity Impact Sensor
The adjustable sensitivity impact sensor detects vibrations and tampering attempts on the door or lock cylinder and triggers the alarm siren before the door is even opened. This not only deters intruders before they can enter but also prevents potential damage to the door and lock. If the lock is not opened with a key after the siren is activated, the alarm will sound for 3 minutes before stopping. If another impact is detected, the siren will trigger again for another 3 minutes. The impact detection sensitivity can be easily adjusted by the user in three levels: sensitive, normal, or coarse.
2. Opening Sensor
If an attempt is made to open the door without any impact, such as using a crowbar or similar tools, the magnetic opening sensor is triggered, activating the alarm siren. This prevents unauthorized access before the door is fully opened. If the lock is not unlocked with a key after the siren sounds, the alarm will continue for 3 minutes. The system then checks if the door is open or closed. If the door is closed, the siren stops; if it remains open, the siren will activate again for another 3 minutes.
Battery-Powered & Wireless Operation
Powered by two standard AA batteries, this device is designed to operate for years without the need for electrical wiring. It also features a low-battery warning system, and the batteries can be easily replaced by the user. The alarm produces a sound level of 105 dB, and the activation, deactivation, and low-battery warning sounds can be set to "low" or "high" levels according to user preference.