ขาย ❀❃✨ Wireless 315mhz Door Sensor Alarm Magnetic Contact Security Door Contact ราคาที่ดีที่สุด

____________❀❃✨ Welcome To The Shop ✨❃❀____________ Decription: Feature: These sensors are used to protect the opening of both doors and windows. If a burglar opens the protected door or window, a magnetic switch inside the sensor, will trip, which sets off the security system. Install one at every entrance to make sure your home is protected. Each sensor is supervised (self-checking) for professional reliability and offers you choice in design and performance It will work with alarm systems, compatible with most standard security system. Pull out the antenna of the magnetic detecto: when the door or window is opened from the closed position, LED 1 will turn to red for 2 seconds, the magnetic detector will be triggered and will send alarming signal to the main unit. Indication of low battery: When the voltage of battery is less than 7.5V, LED 2 will straightly turn on red light. At this time, you nee to immediately change the battery. MC1 Wireless Gaps Detector (Door / Window Contact) Specification: Working voltage: DC12V (single 23A12V battery) Quiescent current: