Your Door Defender- Wireless Door Magnetic Detector
2008-08-07

Most people don't think about home security until they've already suffered a break-in, but ways such as install a wireless door magnetic detector to deter thieves from your home and protect your valuables. Don't wait until it's too late to take action. Make your home a safer place today! Wireless door magnetic detector Wireless door magnetic detector is a commonly wireless devices used in the security monitoring, security systems, it is reliable, compact size, easy to install flexible. Wireless door magnetic detector’s main function is to monitor the door switch state, regardless of when the door was open for whatever reason, the wireless door magnetic immediately launch a specific radio signal, distance alarm to the host. Wireless door magnetic detector’s wireless alarm signal can transmission 100 meters in the open, and in general in the domestic can be 20 meters, closely related with the surrounding environment. Wireless door magnetic detector principle A wireless door magnetic detector is composed of a magnetic stripe and a transmitter. Magnetic stripe is installed in the activities of-door, the transmitter is installed in the fixed-side door. When installing the magnetic stripe keep parallel with the side with a light of the transmitter, the distance the closer the better. There are two launches LED on the box, LED above the red light is fired, following a green LED indicator light is low voltage. When the battery voltage is lower than 8 V, LED will be lit, then need for immediate replacement of door magnetic batteries, otherwise it will affect the reliability of alarm.  Within the magnetic stripe there is a permanent magnet, used to generate a constant magnetic field, within the launch box is a dry normally open spring, when the magnetic stripe and dry spring on the very near (smaller than 15 mm), the dry spring pipe was closed, and wireless door magnetic work in a state of waiting. When the dry spring with the magnetic stripe have a certain distance, the spring switch off, triggering an instant disconnect Circuit issued a VHF radio frequency signal transmitted to the host, the red LED lit simultaneously. Design Wireless door magnetic detector general power-saving design, when the doors closed it does not launch radio signals, the power consumption of only a few milliammeters at this time, when the door was opened the moment and it immediately fired one second alarm about the wireless signal, and then to stop, this will prevent internal battery power depletion and influence alarm caused by launching continuous. 1, wireless door magnetic generally installed in the need for monitoring inside the door at the top, wireless transmitter affixed to the door, the magnetic stripe posted on the door frames; 2, the misstated rate and the location of the installation have great relations, recommended the installation location should be the main pieces of space and the Deputy ≤ 15 mm. Notes: 1. Short and to minimize the distance between the host; 2. To avoid as much as possible between the host and reinforced concrete and electrical appliances; 3. The location must be installed to avoid water or damp areas.