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Stalwall D21 Smart Wireless WiFi Magnetic Door Window Sensor Alarm App Remote Control Support Google Assistant Alexa for Home Security
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Stalwall D21 Smart Wireless WiFi Magnetic Door Window Sensor Alarm App Remote Control Support Google Assistant Alexa for Home Security

- White

Query Status of Doors and Windows Through Alexa: Alexa, Does My Bedroom Window Open?
4.92 13 Customer Reviews | Please refer to English description
9.99 $12.76 22% OFF
    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Apr 06 - Apr 08, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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Stalwall D21 Descriptions

Stalwall D21 Door Window Sensor
The Stalwall D21 smart door and window magnetic sensor can detect the opening and closing status of doors, windows and drawers etc., and send notifications to you via APP. You can also check the current status and historical records. Realizing linkage with other smart devices equipped with Tuya solutions, such as smart light bulbs, smart air purifiers, smart cameras and other smart home products. Smart door and window magnetic sensor is composed of sensor body and magnet. It detects the opening and closing of door and window through the proximity and separation of sensor body and magnet.

Main Features:
 Support Google Assistant, Google Home, Amazon Alexa: can ask those helpers to check the status of the door and window.
 App Remote Control: you can check the status of the door and window via APP at any time from anywhere.
 Easy Connection: smart phones can be connected independently through 2.4G WiFi, without the need to purchase additional gateway.
 Fast Response: by connecting to your 2.4G WiFi router at home, the door and window opening and closing actions can quickly trigger and push messages to your smartphone.
 Record Tracking: all actions (turn on / off) will be recorded in the mobile phone APP.
 Smart Linkage: can linkage with other smart devices equipped with Tuya solutions, such as smart light bulbs, smart air purifiers, smart cameras and other smart home products.
 Long Battery Life: 2 x AAA batteries last for over 8 months.
 Anti-dismantling Alarm: equipped with anti-dismantling detection switch, the alarm information will be pushed to your phone when the sensor is removed.

Wireless Connection: WiFi
WiFi Protocol: IEEE 802.11 / b / g / n
APP: Smart Life



Brand: Stalwall
Model: D21

Main Panel Specifications

Working Time: 8 months
Standby time: 10 months
Charging Time: AAA battery can not charge

Infrared Detector Specifications

Transmission Frequency: 2.4GHz


Power Cable Length: no

Dimension and Weight

Product weight: 0.0600 kg
Package weight: 0.0750 kg
Product size (L x W x H): 6.40 x 3.20 x 1.90 cm / 2.52 x 1.26 x 0.75 inches
Package size (L x W x H): 6.70 x 4.50 x 4.00 cm / 2.64 x 1.77 x 1.57 inches

Package Contents

Package Contents: 1 x Smart Windows and Doors Magnetic, 2 x Double-Sided Adhesive, 1 x English Manual
Stalwall D21 Door Window Sensor- White
Stalwall D21 Door Window Sensor- White
Stalwall D21 Door Window Sensor- White
Stalwall D21 Door Window Sensor- White
Stalwall D21 Door Window Sensor- White
Stalwall D21 Door Window Sensor- White

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Customer Reviews

4.92 out of 5
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  • ivan
    Yes (0) Color: White
    This sensor is added very easy with smart life, and brings all the product pulas and rubber paste. It has very good quality, especially having something interesting, if a trap is removed also alerts you. Use 3 AAA batteries so it is better because you can use the rechargeable. In the states shown App, open, closed, open and semi battery condition What parent is that you can set scenes with smart life to automate and automatically! loa adds ALEXA so the sensor is also within the app ALEXA. Everything in life smar cloud, this is a better option than wyze as it is very limited. Bad or unfavorable would be the size of the master, it is very large (size AAA batteries) so you should consider that

    Dec 13,2019

  • Leecie
    Yes (1) Color: White
    Easy to setup
    I like these things. Easy to setup, reliable sensor for doors and windows. We have these for three doors and they work great. We set them up in not even five minutes, used the tape to attach each piece of the sensor to the door and frame, and it was recognized by the app. We mounted ours in the upper areas of the door, one piece on the door, one on the frame itself. We found that the two components do not have to be touching directly in order for these to work, I have recently come home from work to find my door was left unlocked. Now with the automation I have setup, the door locks as soon as this sensor reports closed (nearly instantaneous)! They are great for our uses.

    Aug 23,2019

  • Mary Walton
    Yes (1) Color: White
    Works well with app
    The install process was quick and easy, only taking a few minutes. I screwed in the bulb, turned on the lamp and followed the simple instructions through the app. So far, the actions have worked flawlessly. I also like the option to set up schedules manually. I like being able to use app to control the bulbs. I will definitely be purchasing more to add to my ecosystem. Highly recommended.

    Aug 26,2019

  • Allie
    Yes (0) Color: White
    We love it!
    We love it. After opening the box I had it setup and working in less than an hour. It was easy setting up this type of action via app and they work great. I can't tell you how much money I have wasted in the past. Worked perfecting for my house Really appricitate how simple it is to set it up with the app and then get it quickly added. Very pleased.

    Aug 24,2019

  • Nicholas Donati
    Yes (0) Color: White
    Nice sensor
    The product comes with batteries all you have to do is pull the tabs off the batteries, install and you have a great security sensor for less than $20. I am very pleased with the product! Easy setup.

    Aug 26,2019

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There are two key factors which will affect the time you receive your items.

Item processing time
After receiving your order,we require some time to test the product to ensure its quality.The exact processing time varies depending on the item.The average processing time is 3 working days.but this can also be affected by the item's stock status. For small quantity orders,the processing time is 1-3days while larger quantity orders may require 2-5days.
Shipping methods
China Warehouse:
Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
Unregistered Air Mail or Registered Air Mail United States 0.52% 23.78% 69.62% 5.87% 25.63
Spain, United Kingdom, Italy, Germany, France & Portugal 1.58% 35.8% 56.84% 5.57% 26.39
Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 5.59% 24.44% 55.84% 13.00% 27
Russia 0% 0.04% 64.94% 30.02% 39.53
Japan, Korea 0% 21.30% 68.80% 9.66% 23
Brazil 0% 0% 23.91% 72.09% 38.6
Thailand, Singapore & Malaysia 0% 18.38% 54.27% 25.34% 19.03
Other countries 0.7% 38.79% 47.94% 8.56% 23.57
Priority Line United States 0.43% 33.18% 65.07% 0.5% 16.43
Spain, United Kingdom, Italy, Germany, France & Portugal 2.55% 18.21% 35.65% 34.27% 26.31
Russia 0% 0% 32.6% 65.4% 36.07
Australia 7.67% 86.60% 5.68% 0% 11
Korea 35.54% 44.45% 19.32% 0% 11.65
Japan 95.80% 2.09% 0% 0% 6.84
Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
Other countries 22.33% 30.8% 27.62% 17.64% 18.65
Expedited Shipping ALL countries(EMS) 3.8% 46.8% 26% 15% 14.8
ALL countries(DHL) 65.8% 25.75% 3.86% 0.37% 6.72
GW Warehouse: Typically 3-5 days to the UK, 3-7days to other European countries.
USA Warehouse:Generally, 3-7 days to a USA address.
ES Warehouse:Generally, 2-5 days to the Spain ,3-7 days to the Portugal.
Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
Note:This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control.

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· Control Number(10 digits)
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· Address of sender

Do you want to bulk buy Stalwall D21 ? Please submit your wholesale Stalwall D21 inquiry below. Please note we usually don’t offer free shipping on wholesale Stalwall D21 orders, but the wholesale price will be a big bargain.

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