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Eufy 1X Door Entry Sensor Add On - White

Eufy 1X Door Entry Sensor Add On - White

$57

Eufy 1X Door Entry Sensor Add On - White

T8900CD4
Eufy 1X Door Entry Sensor Add On - white
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$57
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Description

Add an extra layer of security to your home with this reliable Eufy 1X Door Entry Sensor Add-on. A must-have with your Eufy HomeBase device, this accessory keeps you notified whenever a door or window is open—so you can quickly get into action in case someone breaks into your property. To make it even better, this sensor plays a 100-decibel siren when forced entry is detected.

Key Features

  • Track All Entries: With the Eufy 1X Door Entry Sensor Add-On, you can keep an eye on what happens to your home when someone tries to enter it without your permission. Plus, this device is waterproof—making it suitable for indoor or outdoor use.
  • Intuitive Notifications: Be in the know even if you’re away from your home, thanks to this Eufy Door Sensor. By downloading the Eufy Security App (available on Android and iOS), you can instantly receive push notifications straight to your phone once an activity is detected*. It also sends out Out of Range or Low Battery alerts for ease of use.
  • Built-in Siren: This intuitive product sounds off an extremely loud 100-decibel siren when forced entry is detected, which can help deter unwanted guests.
  • Easy to Install: A breeze to set up, this sensor showcases a small and compact design that makes it easy to mount on walls, doors, or windows in just a few seconds**.
  • Lengthy Battery: Powered by a CR123A battery, this device offers up to 720 days of run time.

*Requires a Eufy HomeBase to use.

**1 x sensor is required for each door or window that you wish to monitor. 

Specifications
All Product Details
Brand Eufy
Product Type Door/Window Sensors
Model Number T8900CD4
Colour White
Smart Home
Output Notification Push Notifications
Out of Range Alert Yes
Low Battery Alert Yes
Camera Specifications
Use Option Indoor & Outdoor
Battery
Battery Type Nickel Cadmium (NiCad)
Battery Model / Details CR123A
Battery Life Up to 720 days
Connectivity
Wired / Wireless Wire Free
Wireless Frequency Bands 2.4 GHz
Wi-Fi Generations Wi-Fi 6E
Supported IEEE Standards 802.11ax
Additional Features
Water Resistant Yes
Waterproof Yes
Software / App Compatibility
App Enabled Yes
Compatible App Eufy Security App
Compatible Mobile Operating System Android, iOS
Temperature / Humidity
Operating Temperature -20°C to 50°C
Dimensions
Product Width 2.9 cm
Product Depth 2.4 cm
Product Height 7.4 cm
Product Weight 0.1 kg
Warranty
Manufacturers 12 Months
Reviews

Expert Reviews

Customer Reviews

Eufy 1X Door Entry Sensor Add On - White is rated 4.3 out of 5 by 3.
Rated 5 out of 5 by from Open and Closed Sensor What a brilliant, handy, affordable little device. We put it on our garage door and it works great! It provides us with a real time alert of when our garage door is opened and closed and in conjunction with the home base 3 you can set it so that during a selected time frame if the door is opened an alarm will sound. Definitely going to buy a few more of these and I highly recommend this little gem - so simple yet does the job.
Date published: 2025-01-16
Rated 4 out of 5 by from Great idea. Easy to install. Great idea. Was hoping it would make an alarm sound if opened to frighten intruders. It does not. It just makes a one off sound. Still worth having if you're not at home.
Date published: 2025-07-23
Rated 4 out of 5 by from Good product & mostly easy to install Definitely recommend easy to install …… once you get the peel off the back.
Date published: 2025-11-11
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Delivery
Delivery

We aim to dispatch orders within 2 days. Delivery costs are calculated based on your location and the size of your order. Furniture may take up to 8 weeks to deliver as most products are made specifically for your order. Some Customer Direct products are shipped from overseas and may take longer to arrive. Some goods may take longer to deliver if a product is currently not in stock. A staff member will contact you where this occurs.

Easy returns

If you feel your product has failed a Consumer Guarantee (as defined by New Zealand Consumer Law) then don't worry you can easily return it to your local Harvey Norman store. We'll even pay for the postage if you live in an area where there is no store. Our returns policy covers any purchased item ( conditions apply).

What's in the box
  • 1 x Eufy 1X Door Entry Sensor
  • 1 x Warning Sticker
  • 1 x CR123A Battery
  • 1 x Wall mount screw set
  • 1 x Manual
  • 1 x Welcome Card
  • 1 x 3m Adhesive strip
Terms & Conditions
Pricing Terms

Limit 2 per customer. Personal shoppers only. Trade not supplied. Available from Wednesday 18th February 2026 until midnight Tuesday 24th February 2026.

Questions & Answers
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Product Care
With Product CareTM you can relax knowing Your purchase comes with additional protection.

Discover all the benefits Product CareTM brings you:
Certainty

With Product CareTM you have certainty that your product is covered for a specific period of time. If, during the Product CareTM term, your product fails to operate as a result of an Eligible Fault*, we will provide a one-off replacement of Your Product.

Support

Our experienced support team ensures that the assessment, replacement or remedy process under your Product CareTM is a convenient experience. Whether you are experiencing a product fault or needing toll free technical assistance, our team is here to provide support every step of the way.

Advantage

Redeem exclusive Additional Benefits which will help you maintain your product and assist in an additional purchase.


There are exclusions and limitations to Product CareTM. This section should always be read in conjunction with the Terms and Conditions for Product CareTM.

Learn more about Product CareTM.

Terms & Conditions

Pricing Terms

Limit 2 per customer. Personal shoppers only. Trade not supplied. Available from Wednesday 18th February 2026 until midnight Tuesday 24th February 2026.

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Manukau, Auckland 2241
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