The Detex Battery Operated Door Prop Alarm is designed for applications where doors may be used but not held open. The door prop alarm sounds when a door is left open longer than the set time and ...

The YL-333 Magnetic Antitheft Alarm is an easy to install security alarm system for doors and windows. This battery-operated device works on the principle of magnetic proximity detection. It can ...

Door prop alarms are low-cost, desirable solutions to propped open doors. Helping keep energy costs down by ensuring the doors are closed, they also serve a vital security need. Sounding when a door ...

Remo+, formerly known as Olive & Dove, is back with a new DIY home security device: the DoorCam. The DoorCam is a $199 battery-powered door-mounted outdoor camera. Available for preorder on the Remo+ ...

Eufy is a smart home technology company that makes everything from robotic vacuum cleaners and mops, to security cameras, video doorbells and, in the case of this review, alarm systems. This is a five ...

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 ...

Chinese Smart Home gadget manufacturer Lumi Technology has launched yet another Aqara-branded product under a new P series. The product is dubbed Aqara P1 Door and Window sensor. The P1 Door and ...

Ring's $199 Z-Wave-enabled Alarm Security Kit is so simple you might overlook it at first. The system includes a base station, a keypad, a door/window sensor, a motion sensor and a Z-Wave range ...