Smart WiFi & Zigbee Door Window Sensor — Phone Alerts

A smart door and window sensor that reports to your phone instead of only sounding locally. Available in WiFi and Zigbee 3.0 versions, so it works as a standalone alert or as part of an existing smart-home setup — you get a notification whether you are upstairs or abroad.

Specification

• Connectivity: WiFi door magnet, or Zigbee 3.0 door magnet (19DYZ)
• Phone notifications when a protected door or window opens
• Rated voltage: 3V battery powered — no wiring
• Overall size: 70 × 25 × 20mm
• Mounting: adhesive, no drilling
• Automation ready: can trigger lights or scenes in a compatible smart-home app

Best for

Homes, flats, offices, workshops, and stockrooms — plus internal doors such as medicine cabinets or a home office. Zigbee models need a compatible hub; WiFi models connect straight to a 2.4GHz router. Includes 1 × door and window sensor.

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.