More than contact sensors

Window and door opening sensors for alarm

The use of door opening sensors helps prevent intruders from entering the territory or premises under protection. Opening sensors protect better than an armored metal door, since now there are many ways to open any locking system.

In order to feel safe, windows, doors or, for example, shop windows are equipped with additional security systems — simple alarm devices with a minimum set of functions, or more serious security systems. Opening sensors are used in both a simple system and a complex one. Such a device is an affordable way to protect an apartment, house, office, bank premises and many others from hacking and criminals.

Before choosing an opening sensor, you should pay attention to their types, applications and choose the best option for yourself.

Where is the opening sensor used

Opening sensors in a guarded room or territory primarily control the entrance area. Intrusion protection is the main function of the device. Often, a siren is activated when the opening sensor is triggered in order to scare off the intruder and draw the attention of neighbors to the scene.

Opening sensors are often installed in the homes of the elderly or children’s rooms. So the user of the system will know that the person closed the front door at night or ate if the opening sensor is installed on the refrigerator door.

Also, opening sensors are installed on showcases or pedestals in stores. When opened, such a device sends an alarm to the control panel and informs the owners about the incident.

Window opening sensors are installed along the perimeter of buildings or in the entrance area. More often, such devices are used on the first or last floors of the building — in the most accessible to criminals places.

How to choose an opening sensor for a burglar alarm

Before choosing an opening sensor for an alarm, you need to determine where it will be used: a door, a window, a showcase, etc. It may be necessary to install several devices. It is desirable that they all be of the same company, design and operating principles. Specialists of the security company, who know what to pay attention to, will help with the model and installation locations.

The shape of the opening sensor is also important. The device should be invisible in the interior and not interfere with the closing and opening of a door or window.

It is worth paying attention to the housing of the opening sensor for the security system. It must be intact. Cracks and holes can affect the performance of the device.

Opening sensors for alarm from Ajax

Opening sensors are one of the main elements of the security alarm. In the Ajax security system, opening sensors can trigger automation scripts, activate a siren, and integrate third-party sensors, making them an important part of a smart home.

How opening sensors work in the Ajax security system

The line of Ajax security sensors includes wired and wireless models, which consist of two parts. The first is a reed switch, an electrical contact in a sealed bulb that closes when a second element, a magnet, approaches it. When the magnet moves away more than 1 cm, the contact opens. Thus, the opening sensor detects the opening and closing of windows and doors, after which, the device sends an alarm signal to the alarm control panel. The security system, after analyzing the information received, informs users and the security company about the incident.

Features of Ajax opening sensors for signaling

Ajax window and door opening sensors have the following features:

1. The sensor detects strangers even before they enter the room.
2. The accelerometer built into the opening sensor allows you to leave ordinary and roof windows for ventilation. If the window tilt angle changes more than 5°, the security system will send an alarm to the users and the security company.
3. Thanks to the ability to receive signals from foreign wired sensors, to recognize changes in the angle of inclination and powerful blows with opening sensors, the security system will raise an alarm in case of an attempt to knock out or dismantle the door. If a limit switch connected to the sensor is integrated into the door frame, a hidden door lock signaling can be obtained.
4. Automation scenarios allow you to set the lights to turn on or lock the doors on an opening sensor alarm. If electric locks are installed at the guarded object, an alarm when an interior door is opened can lower the roller shutters and block all entrance doors. Thanks to this principle of operation, attackers will be detained even before the arrival of the patrol.