Enhance your home or office security with our magnetic reed switch. This wired surface-mounted door and window contact is good for detecting the opening and closing of the door and window. Suitable for use in homes, shops, hotels, computer rooms, and other settings where security is a concern. In addition to providing an extra layer of security, these magnetic reed switches can also be used for automation purposes, such as turning on lights when a door is opened.

Specification
Contact Type: Normally Open Closed(NO NC)
Size: 28mm x 14mm x 9mm (L*W*H)
Rated Current: 500mA
Rated Voltage: 100V
Operating Distance: 10mm-15mm
Mounting Hole Dia.: 3.5mm
Packing List: 1 x Sensor, 1 x Magnet, 4 x Screws

Advantage
The door magnetic contact is made of ABS material that is durable and long-lasting. It helps you achieve door and window monitoring, preventing unauthorized entry and theft. It provides an additional layer of security for your home or business.

Instruction
The wired surface-mounted magnetic reed switch is designed for easy installation and convenience. Simply connect the wires to your alarm system and attach the switch to the desired location on your door or window.

NOTE: When installing, make sure to place the contact on the interior frame of the door and the magnet on the door itself, ensuring proper alignment.

FEATURES

• Suitable for use in homes, offices, shops, and other settings to detect the opening and closing of doors and window
• Contact Type: Normally Open Closed(NO NC); Size: 28mm x 14mm x 9mm (L*W*H); Operating Distance: 10mm-15mm; Mounting Hole Dia.: 3.5mm
• The magnetic reed switch is made of high-quality ABS material for long-lasting durability and corrosion resistance
• Wired surface-mounted design for easy installation and compatibility with various door and window monitoring settings
• When installing, make sure to place the contact on the interior frame of the door and the magnet on the door itself, ensuring proper alignment.

Where do your products come from?
We source inventory through liquidation and wholesale channels, including overstock, closeouts, shelf-pulls, and inspected customer returns from major retailers and distributors.

Why are your prices so much cheaper than retail?
We buy inventory in bulk and price items to move quickly. This reduces overhead and removes typical retail markups.

Are the products authentic?
We focus on legitimate sourcing channels and aim to describe items accurately with clear condition information.

What does “Like New” mean?
Like New items are in excellent condition with little to no signs of use. This can include items that were opened but are still in like-new condition.

Why do some items have different packaging?
Liquidation inventory may include items with opened or replacement packaging. Condition is always shown on the listing.

Do you combine shipping?
Yes—when possible, items may ship together. Shipping is calculated at checkout based on weight, dimensions, and destination.

Do you offer free shipping?
Yes—free shipping applies to orders $50+ (as shown on the site).

How fast do you ship and which carriers do you use?
Shipping options and timelines are shown at checkout. We typically use major carriers such as USPS, UPS, and FedEx depending on package and destination.

What is your return policy?
Please refer to our Returns Policy page for eligibility and timelines.