# eufy Security Siren T8970, 105 dB, IP65

T8970 IP65: The eufy Security Siren is a battery-powered alarm accessory for a compatible HomeBase. It is listed with a 105 dB sound level, app control and indoor/outdoor use, but the HomeBase is required and is not listed among the box contents.

- [Original product page](https://bargainpostbox.co.uk/product/eufy-security-siren-t8970-105db-ip65)
- [View offer](https://bargainpostbox.co.uk/visit/eufy-security-siren-t8970-105db-ip65)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: eufy Security
- Model: eufy Security Siren
- Category: Electronics > Smart Home & Security > Alarms & Sensors
- Price: 24.99 GBP
- Previous price: 39.99 GBP
- Discount: 38%
- Price checked: 2026-11-12T17:37:59.598Z
- Rating: 4.4 / 5
- Reviews: 516

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Requires a HomeBase to operate. The listing describes compatibility with HomeBase S380 and S280.
- Connects to HomeBase using Sub-1G communication, with app notifications relayed through HomeBase.
- The listing claims adjustable volume up to 105 dB and weather-resistant indoor/outdoor use.
- Two CR123 batteries are claimed to last up to two years.

## Pros

- App notifications and battery-status checks are described as available through the eufy Security app.
- The listing claims installation without tools or professional help.

## Specifications

### Identity
- Brand: eufy Security
- Model: eufy Security Siren
### Alarm and control
- Listed sound level: 105 Decibels
- Sensor technology: Motion Sensor
- Control method: App
- Compatible devices: Smartphone, Tablet, HomeBase 2, HomeBase 3
### Power
- Power configuration: Battery Powered
### Dimensions and installation
- Mounting type: Tabletop Mount
- Dimensions: 10.2L x 10.2W x 10.2H centimetres
- Weight: 0.44 Pounds

## Before you buy

- The listing details are inconsistent: one entry says two lithium-ion batteries are required and included, while the feature text specifies two CR123 batteries, and the box list specifies one CR123 battery. The box list also calls the device a Smoke Alarm Listener, while the title and feature text describe a siren. Confirm the selected listing’s model, battery count and contents before buying. HomeBase is required and not listed in the box contents. The stated 105 dB is a listing claim, while customer feedback on loudness is mixed.

## In the box

- 1 Quick Start Guide \(QSG\) (Included)
- 1 Smoke Alarm Listener (Check selected pack): The explicit contents list uses this name, while the title and features describe a siren.
- 1 CR123 Battery (Check selected pack): The listed quantity conflicts with claims of two batteries.
- Mounting screws (Included)

## A good fit for

- Owners of a compatible HomeBase who want an app-linked alarm accessory with remote notifications.
- Buyers looking for a siren described for indoor and outdoor placement and willing to check the sound level suits their setting.

## Less suited to

- Anyone who needs a standalone alarm without a HomeBase.
- Buyers who need confirmed package contents or battery configuration without checking the listing.

## Customer feedback

Customer feedback highlights easy setup and positive impressions of connectivity, while loudness, functionality, quality and value receive mixed reactions. For buyers adding it to a compatible HomeBase system, the reported setup and connectivity positives may matter, but the stated 105 dB figure does not settle concerns about perceived loudness. Weather resistance is a listing claim, and feedback on it is also mixed.
- Positive themes: Customers report that setup is easy.
- Positive themes: Customers describe it as a useful addition to their alarm system and respond positively to its connectivity.
- Mixed feedback: Customers disagree on whether the siren sounds as loud as suggested.
- Mixed feedback: Feedback is mixed on functionality, quality, value for money and weather resistance.

## Frequently asked questions

### Does this siren work without a HomeBase?
No. The listing says HomeBase is required for operation and for relaying notifications to the app.
### Which HomeBase models are listed as compatible?
The feature text names HomeBase S380 and S280. The device details separately list HomeBase 2 and HomeBase 3, so confirm compatibility for your specific model before buying.
### What batteries are included?
The listing is inconsistent. It mentions two CR123 batteries in the feature text, two lithium-ion batteries in the details, and one CR123 battery in the stated box contents. Check the selected listing.
### Is the alarm definitely 105 dB?
The listing claims a sound level of 105 dB and adjustable volume. Customer feedback is mixed on whether the siren sounds as loud as expected, so treat the figure as a listing claim rather than an independently verified result.

## Alternative options

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- [Imou 2-in-1 4K Dual-Lens Outdoor Security Camera with Human/Auto Detection \| CCTV Camera Wireless Wi-Fi Outdoor, 30M Color Night Vision, 360° PTZ Home Security Camera, Smart Tracking, Siren, IP66](https://bargainpostbox.co.uk/visit/eufy-security-siren-t8970-105db-ip65)
- [CPVAN Indoor Motion Sensor Alarm with Siren, Remote Control Wireless Infrared DIY PIR Motion Detector Burglar Alarm System, 125dB Adjustable, Battery Operated, for Home/Shed/Garage/Van/Shop.](https://bargainpostbox.co.uk/visit/eufy-security-siren-t8970-105db-ip65)
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## Add-ons

- [eufy Security Home Alarm System Motion Sensor, 100° Coverage, 30 ft Detection Range, 2-Year Battery Life, Adjustable Sensitivity \(HomeBase Required\)](https://bargainpostbox.co.uk/visit/eufy-security-home-alarm-motion-sensor)
- [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](https://bargainpostbox.co.uk/visit/eufy-security-t8990-five-piece-home-alarm-kit)

## Images

![eufy Security Siren T8970, 105 dB, IP65 — 1](https://bargainpostbox.co.uk/i/vPf9jTIYS8a9ofeIILjkig6AsOX1m5eVsgYNv2alsyIVxD_uiHM32xwpECDSr9W95V4shEjn4N6mU4YvVnpSZhrByAGaJs3sSg1bfQTilUc2ommepcErSesV.jpg)

![eufy Security Siren T8970, 105 dB, IP65 — 2](https://bargainpostbox.co.uk/i/oBLIRFuyR8wYgxrH2pqCiICprM_fDAyqHFk-9UQGnrxx4lCY03EUVdw1dvCNhcv630cha1PajKAhfXbIqp74ykLIFHrTyrIpP23DpugrBakzjfGpY54YhS8S.jpg)

![eufy Security Siren T8970, 105 dB, IP65 — 3](https://bargainpostbox.co.uk/i/KYEOx2ubausa42peEr74FnmEB9Vm1eITaXo_08p1D2otQde71Y-LHJRHacCjSDxwGMQCZMfkJIElh_5xZWue447wTASVtAyiCpn9e52piw6WEulYfoeTw6LJ.jpg)

![eufy Security Siren T8970, 105 dB, IP65 — 4](https://bargainpostbox.co.uk/i/0Moc-shbtBkTR_2x31gIFsRv_6ml0QxAuXPyTtkoqT-Z2q8-QPB3GbUQLL5JzSfxakKnqSuFqTquph4bdwjHqOAgtr55EAHEy_C0HoaWXPsFfz01jj5GmQp6.jpg)

![eufy Security Siren T8970, 105 dB, IP65 — 5](https://bargainpostbox.co.uk/i/3k1xY4N8yvr3Hky4djbWEchyQx9SsefE4fmWEvhUG9x-IRGfHkwTv6bpaOl2vSLEVuJQxZgZsTXpWj5m-v7olIkJUauVD47-KRJXV1tDfu4bZeHOXunE9cnj.jpg)

![eufy Security Siren T8970, 105 dB, IP65 — 6](https://bargainpostbox.co.uk/i/NoolywM9pnkpNOV5c_PkNl9OQeVLvHuzP2wKYqmee75DyLKqPZIwfrUWj342GxPKwD6GgUF_XAVspJeMvIUUuO8F3fXrvbnKFHq1BcKJ5dNoGc28Idm4h2TF.jpg)