FBMC55ZL Wireless Safety Door Switch Magnetic Contacts

Roller shutter sensor,heavy duty overhead door contact sensor,
for Mounting on Door Tracks,
Adjustable "L" bracket, magnet can be installed in many ways!
Armored cable in 380mm or 480mm length
Wider Gap for reduced false alarms
Closed Loop, open loop and SPDT types
 
*Housing: zinc
*Color: grey
*Gap:50-70 mm
*Certificates:FCC,CE ,ROHS
*Surface mounted with screws, leads 530mm standard length, with armored cover cable of 380mm or 480mm 

Magnetic Contact  is mainly composed of two parts, switch and magnet.Part of the magnet is encased in a plastic or alloy housing by a magnet of the corresponding magnetic field strength. When the two are separated or close to a certain distance, the switch is opened and the position of the object is induced.

Door magnetic system is a security alarm system, door magnetic, window magnetic (same principle, different shape).[1] door/window magnets are not easy to see if you don't pay attention to them.So-called magnetic magnetic door/window is short for window door magnetic switch and magnetic switch, consists of two parts: small parts for permanent magnets, inside has a permanent magnet, used to generate a constant magnetic field, the magnetic door is the main body, inside it there is a normally open type dry reed pipe, when the permanent magnet and reed pipe very close (less than 5 mm), door magnetic sensor is in a state of work waiting for you, when permanent magnet after leaving the dry reed pipe length, in a normally open state.Magnets and reed pipes are installed in door frames (window frames) and door fans (window fans) respectively, and are basically embedded (there are also surface mounted), so it is not uncommon for people in the industry not to notice this.You can open the door and the outside window, look at the top of the door frame and the window frame of the outside window, you can see the round, generally white components, in fact this is the so-called door magnetic, window magnetic

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