Name: Eufy T89000D4 door/window sensor Wireless Door/Window White
Brand: Eufy
SKU: cmnozg361cc40nst2gsk1z6is
Availability: InStock

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Description

2-YEAR BATTERY LIFE: One CR-123A battery provides monitoring for 730 days. FOR DOORS AND WINDOWS: Small and compact design fits onto any door or window frame. POWERFUL SIREN: If a forced entry is detected, a siren as loud as a jackhammer will be triggered on HomeBase, and you’ll be notified instantly on your smartphone. EASY INSTALLATION: Just peel off the mounting tape and stick the sensor onto the door or window you want to monitor. Entry Sensor. Protect Your Doors and Windows from Break-Ins with eufy Security Entry Sensor. Once a window or door is ajar by 1.5 inch, an alert will be sent to your smartphone, and a powerful siren will go off on the HomeBase (can be disabled). Requires eufy Security HomeBase.. eufy Security: Less Trouble. More Secure. Ever Expandable.. Surveil your home from front to back for total peace of mind. Created by the same team as Anker: renowned for exceptional quality and innovation. Features. Operating temperature (T-T). -10 - 50 °C. Easy to use. Yes. Product colour. White. LED indicators. Yes. Alarm decibels. 100 dB. Suitable for. Door/Window. Connectivity technology. Wireless. Power. Number of batteries supported. 1. Battery type. CR-123A. Weight & dimensions. Weight. 67 g. Height. 74 mm. Depth. 22 mm. Width. 28 mm. Sustainability. Compliance certificates. CE. leaflet

Full specifications

Marque	Eufy
Référence fabricant	t89000d4
EAN	0194644019068

Eufy T89000D4 door/window sensor Wireless Door/Window White: complete technical analysis for 2026

When it comes to Informatique, the Eufy T89000D4 door/window sensor Wireless Door/Window White by Eufy is a reference that savvy buyers know well. Its value for money in 2026 deserves particular attention, especially given its availability across many retailers and the brand's strength in the market. Our comparison tool lets you view all available offers in real time, with or without free delivery, and click directly on the offer of your choice.

Who is this Informatique for?

The Eufy T89000D4 door/window sensor Wireless Door/Window White benefits from the expertise of Eufy in this category. Its design meets current market standards and satisfies even the most demanding users in their everyday activities. The brand's reliability translates into positive feedback from regular buyers, who particularly appreciate the consistency between the promises of the product sheet and the real-world experience. For the Informatique category, this is an option we recommend without hesitation.

For intensive or occasional use

The Eufy T89000D4 door/window sensor Wireless Door/Window White adapts to different levels of use in the Informatique category. Whether you use it intensively every day or more occasionally, this Eufy product offers appreciated versatility. Regular users value its reliability over time, while occasional users appreciate how easy it is to pick up without any special training. For even more demanding use, also check the Eufy T8910021 motion detector Wireless Wall White.

Against the competition

In the Informatique market, the Eufy T89000D4 door/window sensor Wireless Door/Window White is well positioned thanks to its price from £28.98 and the strength of Eufy. Our comparison tool lets you verify in real time whether this positioning still holds against other available offers.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 384300 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	384300 £ to 896710 £	Regular daily use	Good value for money, solid performance
High-end	Over 896710 £	Demanding users	The best of the category, all advanced features

The best times to buy the Eufy T89000D4 door/window sensor Wireless Door/Window White at a lower price are Black Friday in November, the January sales and the summer sales in July. Our price history lets you judge whether the current price is a genuine bargain or whether it is worth waiting a few weeks. Outside these periods, flash promotions remain frequent among Compiral's partner retailers.

Frequently asked questions about Eufy T89000D4 door/window sensor Wireless Door/Window White

How does the Eufy T89000D4 door/window sensor Wireless Door/Window White compare to competitors in the Informatique category?

In the Informatique category, the Eufy T89000D4 door/window sensor Wireless Door/Window White occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Eufy T89000D4 door/window sensor Wireless Door/Window White suitable for beginners?

Yes, the Eufy T89000D4 door/window sensor Wireless Door/Window White is generally appreciated by both beginners and regular users of the Informatique category. It is quick to set up and Eufy usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the Eufy T89000D4 door/window sensor Wireless Door/Window White?

Refurbished versions of the Eufy T89000D4 door/window sensor Wireless Door/Window White may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Eufy T89000D4 door/window sensor Wireless Door/Window White drop during the year?

Prices for the Eufy T89000D4 door/window sensor Wireless Door/Window White typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the Eufy T89000D4 door/window sensor Wireless Door/Window White at all retailers?

Free delivery is not guaranteed for the Eufy T89000D4 door/window sensor Wireless Door/Window White at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.