The Onvis CS2 isn't just a contact sensor. With a 120dB siren, Thread support, and climate tracking, it's a 4-in-1 security ...
If the sound of someone jiggling your doorknob absolutely petrifies you, then a new device that’s aimed at scaring off potential intruders may be just what you’re looking for. Sabre, a company known ...
Vacation is a time to relax, but even the most serene getaways can be stressful when you’re in an unfamiliar place. That's why Jill Dressel, a private flight attendant who travels frequently, decided ...
Economical circuit of an electronic alarm, notifies you when your door or window is open, is presented here. This circuit wired around the Quad 2-input NAND Schmitt trigger IC 4093 (IC1) can be ...
February 20, 2018 – STI’s newly redesigned Exit Stopper Door Alarm continues to help solve the problems of unauthorized exits and entries of fire or emergency doors. The multifunction door alarm now ...
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