Magnetic Door & Window Alarm — Wireless Entry Sensor

A magnetic door and window alarm that sounds the moment a protected opening is separated. It fits in minutes with no wiring and no drilling, which makes it practical for renters, ground-floor flats, sheds, garages, and any window that a fixed alarm system never covered.

Specification

• Two-part magnetic sensor: triggers when the door or window is opened
• Rated voltage: 3V battery powered — no mains wiring
• Current draw: 10mA in operation
• Mounting: surface mount with adhesive pads
• Dimensions: 70 × 25 × 20mm
• Weight: 35g

Where to fit it

Front and back doors, ground-floor and accessible windows, patio doors, internal doors to a home office, sheds, garages, and stockrooms. Mount both halves so they sit within a few millimetres when closed, and test after fitting. Includes 1 × door and window alarm.

We offer free shipping on all orders within the U.S.

Orders are processed within 1-3 business days, and delivery usually takes 5-12 business days, depending on the product and warehouse location.

Most orders include tracking information, which is provided 2-5 days after shipment. Delivery is handled by trusted carriers like USPS or regional couriers.

Please note that delivery times are estimates and may be affected by supplier processing, high demand, holidays, or customs (for international warehouse items).

For more details, please see our full Shipping Policy.

We offer a 30-day return policy. You have 30 days from receiving your order to request a return.

To be eligible, items must be unused, in original packaging, and accompanied by proof of purchase. Some items cannot be returned (perishables, custom products, personal care items, sale items, and gift cards).

To start a return, contact us at 📧 contact@marketopia360.com with your order number and photos or videos of the issue. Returns must be approved before sending. Return addresses may vary, and a shipping label may be provided depending on the situation.

Refunds are issued to your original payment method within 10 business days after approval. EU customers have a 14-day cancellation period.

For more details, please see our full Return & Refund Policy.