Description
Magnetic Contact sensors can be added to an existing wired Alarm Systems. They are ideal for protecting doors, windows and patio doors and any opening device such as a drawer or cupboard for example. In the event of no contact the alarm will be activated immediately. Magnetic Contacts are perfect for use in situations where it is not suitable to fit PIR sensors, for example where there are pets or animals.

Technical Specifications
Product Name : Magnetic Door Contact Reed Switch
Model: 31B
Material: Anti-fire ABS shield
Color: White
Connecting mode: N.C./N.O conbined
Rated current: 500(mA)
Rated voltage: (VDC)100
Operating distance: more than 15mm, less than 25mm
Rated power: 10W
Dimension: 55*12.5*11.5mm
Mounting Hole Size : 7 x 2.5mm/ 0.28" x 0.1"(L*W)
Recommendations in application: wooden door, window, metal doors, gates and any other compatible application.

Type
N.C and N.O combined
NC (normally closed), switch is closed when magnet come to the switch. Leave, the switch will open.
NO (normally open), switch is open when magnet come to the switch. Leave, the switch will close.

Features and Benefits
Made of ABS, durable in use.
One of the only switches with both normally closed contacts
Surface-mounted magnetic contact, ideal wooden door or window use.
Effective for Theft Deterrence.
Great for pick-ups with sliding rear window.

Notice
Please allow 0.5-1mm error due to manual measurement.Pls make sure you do not mind before you bid.
The color may have different as the difference display,pls understand.

What's Included
10x Switch with terminals
10x Magnet
1x Package of screws