Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Sensor for house Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home
Latest Door Sensor Window Sensor for Safe Home

Latest Kerui Door Sensor Kerui Window Sensor

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Estimated Delivery Date: Sunday, Apr 28

Due to high demand, please allow at least 1-3 weeks for delivery.

Insured & Trackable Worldwide Shipping

Your tracking number will be sent to you after 3-5 processing days.

Love It or Get A 100% Refund!

We're absolutely confident that you'll love this product. If you don't, just return it for a FULL refund! No questions asked!

Product Details
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About Us
Product Details

Smart WiFi Kerui Door Sensor Kerui Window Sensor Detectors Home Security Alarm System. Compatible With Alexa Google Home APP

  • Item Type: Security Sensor
  • Material: ABS Plastic
  • Operating Temperature: -10℃-40℃ / 14°F-104°F
  • Operating Humidity: 20%-85%
  • Storage Temperature: -10℃-60℃ / 14°F-140°F
  • Storage Humidity: 0%-90%
  • Standby Time:6-12 Months
  • Transmission Frequency: 433MHz
  • Transmission Distance: 50-150 m in Open Area
  • Size: 75 x 36 x 16 mm / 2.95 x 1.42 x 0.63 inch

Package Includes:

  • 1 x Pc / 3 x Pcs / 10 x Pcs (Optionally)


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Feature of Kerui Door Sensor Kerui Window Sensor

  • Make your door/window smarter – when you leave home, it will push a notification to you if the doors or windows are opened or invaded by an external object, you will find anomalies in your home immediately
     Create Smart Home:  Create a smart scene on Smart APP, your smart light can be automatically turned on when you open the door
    Battery Wi-Fi powered: – Full of power long durable, replacing the battery is simple, service more intimate
    PLUG & PLAY with smart life APP -No hub required, simply download the “smart” app on iOS and Android.

Your personal butler & receptionist

  • Instant notification to your phone immediately when the door or window is opened or closed. With the “Smart Life” Kurei door and Kerui window sensor, you don’t have to worry about your baby going out of the house without notice, and easily know when your aged parents leave or arrive home, even can be clear when someone enters your shop, office and company reception, etc. Keeping you safe and informed all the time.

Full peace of mind

  • “Smart Life” door sensor Kerui window sensor provides 24-hour monitoring. Even if you are far from your home, garage, car, shed, garden, etc., you can check whether the door/window is open with the free app anytime and anywhere, giving you a full sense of security

Everything is under control

  • Support checking unlocks/lock records and battery levels on the free “Smart Life” Never worry about missing any important moment or running out of battery. If you install more than one smart Wi-Fi Kerui door sensor in different places for home alarm.
  • All the statuses of the Kerui door sensor, and Kerui window sensor will be displayed simultaneously within the app so that you can easily know what you want at a glance.

Easy to Install

  • No complicated installation tools are required. The Kerui Door sensor can be installed with double-sided adhesive tape or screws(included) in just a few steps, and download an app “Smart Life” from Google Play or App Store to add the device to detect the status of your door/window.

Read our knowledge base for home security


  • Over 37,000 happy customers worldwide
  • Real people on our support team ready to help
  • The finest materials and stunning design — all our products are manufactured with an obsessive dedication to quality, durability, and functionality
  • We use the most secure online ordering systems on the market and are constantly improving our software to make sure we offer the highest possible security


Our mission is to make your shopping experience as safe and enjoyable as possible. Have questions? Feel free to contact our award-winning customer care team for advice on everything from product specifications to order tracking.

  • Money back guarantee: Something not quite right? If you’re not totally satisfied with your purchase, you can return it within 15 days for a full refund
  • Risk-Free Purchase: We utilize industry-standard Secure Sockets Layer (SSL) technology to allow for the encryption of all the sensitive information, so you can be sure your details are completely safe with us
  • Trustworthy payment method: We partner with the most popular online payment solutions that guarantee enhanced security and fast transaction processing
Shipping & Payment


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Gadjetree (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.


How much do you charge for shipping?

We provide free shipping to over 200 countries around the world*
*with some exceptions

Will I be charged any shipping, customs or duties fees?

No, the price you see is the price you pay - you won't be charged any extra fees.

When will you ship my order?

If you order an in-stock item, we’ll ship it within 3 working days.

How long will my order take to arrive?

Orders are shipped by EMS or USPS. Typically, delivery takes 5-20 working days after dispatch, but it may take longer due to factors beyond our control.

Do you provide tracking information?

You will receive your tracking information within 3-5 working days. But sometimes tracking might not be available if free shipping applies. In this case, please contact us at

Can I cancel my order?

You can change or cancel your order within 12 hours. Please contact us at

About Us
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