---
product_id: 255655789
title: "Eufy Door Alarm Entry Sensor White - T89000D4"
brand: "eufy security"
price: "₨37656"
currency: LKR
in_stock: false
reviews_count: 6
url: https://www.desertcart.lk/products/255655789-eufy-door-alarm-entry-sensor-white-t89000d4
store_origin: LK
region: Sri Lanka
---

# 100 dB siren alert 800 days battery life Compact versatile fit Eufy Door Alarm Entry Sensor White - T89000D4

**Brand:** eufy security
**Price:** ₨37656
**Availability:** ❌ Out of Stock

## Summary

> 🚪🔒 Secure your space, stay effortlessly connected.

## Quick Answers

- **What is this?** Eufy Door Alarm Entry Sensor White - T89000D4 by eufy security
- **How much does it cost?** ₨37656 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/255655789-eufy-door-alarm-entry-sensor-white-t89000d4)

## Best For

- eufy security enthusiasts

## Why This Product

- Trusted eufy security brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eufy Ecosystem Ready:** Effortlessly expand your smart home security with easy WiFi sync and integration.
- • **Sleek, Minimalist Design:** Discreetly blends with any door or window frame for a modern, professional look.
- • **Unmatched Battery Longevity:** Keep your home secure for over 2 years without a battery change.
- • **Instant 100dB Siren & Alerts:** Deter intruders with a powerful siren and get real-time smartphone notifications.
- • **Seamless, Tool-Free Installation:** Peel, stick, and secure your entry points in minutes—no hassle, no fuss.

## Overview

The Eufy Door Alarm Entry Sensor T89000D4 offers a robust 2-year battery life, a piercing 100-decibel siren, and a compact design that fits any door or window frame. Designed for easy peel-and-stick installation, it integrates seamlessly with the Eufy Security HomeBase to deliver instant alerts to your smartphone, making it an essential upgrade for a smart, secure home.

## Description

1

Review: ممتاز
Review: The Eufy ecosystem is very good, I’ve had it for five years now. Just needed more entry sensors which was easy to synchronize or connect to the WiFi and the system and it works well. The adhesive is good, it sticks properly to the surface of my window really good. I would recommend the entire Eufy ecosystem if you want a reliable security system for your home. Remember you can set up the entire system yourself. It’s that easy.

## Features

- 2 years Battery Life: One battery provides 800 days of monitoring.
- For Doors And Windows: Compact and versatile design fits onto any door or window frame. Requires eufy Security HomeBase.
- 100 Decibel Siren: Enable or disable siren protection, which triggers a 100-decibel siren on HomeBase, and sends an alert to your smartphone when forced entry is detected.
- Easy Installation: Just peel off the mounting tape and stick or screw the sensor onto the door or window you want to monitor.
- What’s Included: Entry Sensor, CR123A Battery, Magnet, 3 x Mounting Screws, Owner's Manual, Happy Card.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GJJZZ3G |
| ASIN  | B07GJJZZ3G |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Battery description | Lithium |
| Best Sellers Rank | #16,158 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #19 in Home Security Door & Window Sensors |
| Color | white |
| Control method | App |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,871) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,871) |
| Date First Available | 2 May 2019 |
| Date First Available  | 2 May 2019 |
| EU Spare Part Availability Duration | 2 Years |
| Global Trade Identification Number | 00848061058666 |
| Included components | Entry Sensor, CR123A Battery, Magnet, 3 x Mounting Screws, Owner's Manual, Happy Card. |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 68 g |
| Item model number | T8900 |
| Item model number  | T8900 |
| Item weight | 68 g |
| Manufacturer | Eufy |
| Manufacturer  | Eufy |
| Mounting type | Door Mount, Window Mount |
| Noise level | 100 Decibels |
| Number of batteries | 1 Lithium Ion batteries required. (included) |
| Part number | AK-848061058666 |
| Product Dimensions | 7.4 x 2.8 x 2.2 cm; 68.04 g |
| Product Dimensions  | 7.4 x 2.8 x 2.2 cm; 68.04 g |
| Sensor technology | Contact Sensor |
| Size | motion sensor |
| Style | Sensor |
| UPC | 848061058666 |
| Wattage | 7.5 watts |
| tech_spec_battery_description_toys | Lithium |

## Product Details

- **Brand:** eufy Security
- **Colour:** white
- **Compatible devices:** Smartphone
- **Power source:** Battery Powered
- **Product dimensions:** 7.4L x 2.8W x 2.2H centimeters

## Images

![Eufy Door Alarm Entry Sensor White - T89000D4 - Image 1](https://m.media-amazon.com/images/I/5161rwtCsHL.jpg)
![Eufy Door Alarm Entry Sensor White - T89000D4 - Image 2](https://m.media-amazon.com/images/I/61MvOb6Le2L.jpg)
![Eufy Door Alarm Entry Sensor White - T89000D4 - Image 3](https://m.media-amazon.com/images/I/712Wx1pqmvL.jpg)
![Eufy Door Alarm Entry Sensor White - T89000D4 - Image 4](https://m.media-amazon.com/images/I/61PyqNLdy+L.jpg)
![Eufy Door Alarm Entry Sensor White - T89000D4 - Image 5](https://m.media-amazon.com/images/I/61fzKOXlOHL.jpg)

## Questions & Answers

**Q: Notification if a door is left open? Is there a way to set a delay lets say 5 mins so if the door left open for 5 min or more, it notifies via alert?**
A: Yes, after 5 mins and many other options. Please see the video.

**Q: How many eufy security ***entry sensors** can be used per base station? how many cameras can i use simultaneously with said sensors?**
A: One HomeBase can support up to 16 cameras and 16 entry sensor.

**Q: Does the updated homebase 2 firmware expose these sensors to apple's homekit?**
A: We are sorry that these sensors cannot support homekit.

**Q: If power is lost and you have the plus monitoring service will you get notified of the power outage?**
A: I am going to say no.  It has to check in with them over the Internet and there could be numerous reasons that communications don't reach them.  I would be surprised if it does actually check in regularly instead of just waiting to send an alarm alert.  On my old alarm it has a battery backup and uses the landline phone to call in issues.  So, if the power goes out it will use the battery backup to make a landline call and then the monitoring station will call me.  Usually when the battery is low.  I could be wrong but it's unlikely this configuration could support that notification.  If you have a UPS that keeps your internet powered up then it, or the PC, can be configured to send an alert then it goes to battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***D on 20 October 2025*

ممتاز

### ⭐⭐⭐⭐⭐ Review
*by R***E on 18 December 2025*

The Eufy ecosystem is very good, I’ve had it for five years now. Just needed more entry sensors which was easy to synchronize or connect to the WiFi and the system and it works well. The adhesive is good, it sticks properly to the surface of my window really good. I would recommend the entire Eufy ecosystem if you want a reliable security system for your home. Remember you can set up the entire system yourself. It’s that easy.

### ⭐⭐⭐⭐⭐ Review
*by M***N on 20 September 2025*

An all-round great product, set up was easy, and they are super reliable. I just took them out of the box, loaded the included batteries into them, and placed them on my door and door trim, and it worked like a charm. The adhesive strip on the back of them allows you to readjust the sensor and magnet a few times without losing any strength, so you can find the best spot to place them, making sure the gap between them is less than 4cm. When testing, I armed the security system and opened the door as if I were an intruder, and the alarms started blaring instantly. I also got a notification on my phone as soon as it happened. No regrets adding this to my security system

## Frequently Bought Together

- eufy Security Entry Sensor, Detects Opened and Closed Doors or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor Use Only, Requires HomeBase, 24/7 Monitoring Optional
- eufy Security 5-Piece Home Alarm Kit, Home Security System, Keypad, Motion Sensor, 2 Entry Sensors, Home Alarm System, Control from The App, Links with eufyCam, Optional 24/7 Protection
- eufy Security Motion Sensor, Home Alarm System, 100° Coverage, 30 ft Detection Range, 2-Year Battery Life, Adjustable Sensitivity, HomeBase Required, Optional 24/7 Protection Service, Home Security

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-24*