Accessory for iSmartAlarm Security System. Monitor open/close status of doors, windows and more. Communicates with system from up to 320 feet away Wireless, battery-powered. Easily placed at any door or window opening using two-sided adhesive tape. Removable and moveable – Can be used on a door today, a window tomorrow. The contact sensor, 2 pk gives additional security to your home security system by iSmartAlarm. The sensors are removable, movable and easily placed at any door or window. They instantly notify you when the door or window is open. These sensors are part of a self-monitored, self-controlled wireless security system with no monthly fees or contracts required. The iSmartAlarm app allows you to arm, disarm and monitor your security system from your smartphone. If you are looking to add security to your DIY home security system, these contact sensors will give you the protection you need.
These window and door sensors work great. These have a heavy duty magnet that allow a greater space between the sensor and the magnetic switch (3/4"), thus, preventing false alarms. The system also had a greater distance for the sensors back to the Cube. It's nice that they come with their own custom size backing tape. The only way into the house without a chime is through the chimney!