5 pcs NEW Economical Wireless door sensor / door magnetic contact in 433mhz or 315mhz

Product Description

Door / Window Sensors:
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. 

Feature:

• Work Distance: 300 meters
• Input Voltage: 12V DC
• Work Frequency: 433MHz
• Encoding: Jump hat pin
• Size: 71 x 36 x 15(mm) / 2.8 x 1.4 x 0.6(inch)
• Oscillation resistance jump cap options
• Power supply: Battery (12V DC included)

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5 pcs Free shipping Economical Wireless door sensor / door magnetic contact in 433mhz or 315mhz US$ 16.84/lot 5 pieces / lot