Small in Size, Massive in Capability
The BS-2021 Mini-On Alarm Contact with Flange may look simple on the outside, but this sophisticated little mechanism is a testament to the notion that big things come in small packages. Inexpensive and reliable, the BS-2021 is your first all-important line of defense. It supports a common 2-wire alarm installation, so you can easily install the device in minutes.
Heightened Home Security
The BS-2021 is just one of the many innovative security products in the WINN Security line. This professional-grade surface mount magnetic alarm door/window contact is designed to elevate your home security without disrupting your decor, and it's small enough to work seamlessly with almost any door or window. The dimensions measure 1 1/4" x 3/8" x 3/8", and the soft white color offers plenty of aesthetic appeal without insisting upon itself.
How it Works
As the name suggests, a door/window contact is a switch that detects the opening of a door or window. All door/window contacts, no matter how sophisticated, operate on the same principle. The switch is mounted to the door or window surface and held closed by a magnet attached to the frame. When the door or window moves away from the magnet, the switch opens and a signal is sent to the alarm control panel.
Electric Circuit Technology
This system uses an electric circuit, which runs from one end of the contact to the other. As long as the door or window remains closed, the circuit remains intact, but when someone opens the door or window, the flow of electricity is disrupted and the circuit is broken. This triggers an alarm.
Home Security Store is offering this powerful little contact at an incredible value. We ship most items same-day, and we offer the best deals on all of your essential home security equipment. Stock up today, and secure your home from top to bottom.