# WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms

Interlinked: WISUALARM S04-R8 is a three-alarm battery-powered smoke detector set described as pre-connected for wireless interlinking. Its claimed 10-year sealed battery and adhesive mounting avoid routine battery changes and wiring, while customer feedback reports both straightforward fitting and concerns about pairing and false alarms.

- [Original product page](https://bargainpostbox.co.uk/product/wisualarm-s04-r8-three-piece-interlinked-smoke-alarms)
- [View offer](https://bargainpostbox.co.uk/visit/wisualarm-s04-r8-three-piece-interlinked-smoke-alarms)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: WISUALARM
- Model: S04-R8 \(3 Pcs\)
- Category: Electronics > Smart Home & Security > Alarms & Sensors
- Price: 41.99 GBP
- Previous price: 59.99 GBP
- Discount: 30%
- Price checked: 2026-11-12T16:02:51.954Z
- Rating: 4.3 / 5
- Reviews: 189

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

- Three smoke alarms are listed as pre-connected, and the maker also describes wireless linking with up to 24 Wisualarm alarms.
- The sealed, non-replaceable battery is claimed to last 10 years. Actual service life is not independently verified here.
- The maker claims an 85dB sound output within 3 metres.
- The alarms are listed as photoelectric and described by the maker as using split-spectrum sensing.
- The maker claims EN 14604 compliance. This is a listing claim, not an independent verification.

## Pros

- The stated pack of three is pre-connected, reducing the need for initial manual pairing if that listing claim is accurate.
- Battery power and adhesive mounting are intended to avoid wiring, and the maker claims a 10-year battery life.
- Customer feedback includes reports of easy installation and fitting.

## Cons

- The sealed battery is described as non-replaceable, so the alarm itself must be replaced when its battery reaches end of life.
- Customer feedback includes reports of pairing problems and random false alarms, which matter for an interlinked safety system.

## Specifications

### Identity
- Brand: WISUALARM
- Model: S04-R8 \(3 Pcs\)
### Power and battery
- Power configuration: Battery Powered
### Sensing and alarm
- Sensor type: Photoelectric
- Alarm output: 85dB Alert
- Upper temperature rating: 55 Degrees Celsius
- Operating humidity: ≤ 95% RH \(non condensing\)
### Dimensions and installation
- Dimensions listed: 4.3D x 9.8W x 9.8H centimetres
- Weight listed: 450 Grams
- Installation claim: This alarm can be easily installed on the ceiling without any wiring. Just use the attached adhesive to intall directly.
### Materials and appearance
- Material listed: PC+ABS
- Colour: White

## Before you buy

- The maker claims a 10-year sealed battery, pre-connected alarms, wireless linking with up to 24 compatible Wisualarm alarms, and EN 14604 compliance. These claims are not independent verification. The listing describes the three-piece set as pre-connected but also gives manual pairing instructions. It says the model is incompatible with a gateway, while remote silencing requires a separately owned infrared remote and says a TV or air-conditioner remote may work. The contents list includes three adhesives, positioning stickers, screw-anchor packages, three alarms and a manual. The listing's 85dB descriptions differ between “85dB within 3 meters” and “over 85dB at 3 meters.” Confirm the selected kit's contents and relevant compatibility before relying on these details.

## In the box

- Adhesive, 3 pieces (Included)
- Positioning stickers, 3 pieces (Included)
- Screw-anchor packages, 3 pieces (Included)
- Smoke alarms, 3 pieces (Included)
- User manual (Included)

## A good fit for

- Households seeking three smoke alarms that are claimed to arrive pre-connected, with battery power and no-wiring installation.
- Buyers who prefer a claimed long-life sealed battery and are comfortable replacing the detector rather than changing its battery.

## Less suited to

- Buyers who need a replaceable battery, confirmed gateway compatibility or a remote included in the kit.
- Anyone unwilling to check interlink operation after installation or to consider reported pairing and false-alarm concerns.

## Customer feedback

Customer feedback highlights easy fitting and installation, but also reports mixed experiences with connectivity and quality, including pairing issues and random false alarms. Opinions on value are divided. These reports are relevant to a three-alarm set advertised as pre-connected: test all units together after fitting, and weigh the installation convenience against the reported reliability concerns. Aggregate ratings are generally positive but do not establish how an individual unit will perform.
- Positive themes: Customers report that the alarms are easy to fit and install.
- Negative themes: Customer feedback includes reports of random false alarms and pairing issues.
- Mixed feedback: Connectivity, product quality and value receive mixed feedback.

## Frequently asked questions

### How many alarms are listed in this set?
The model is identified as S04-R8 \(3 Pcs\), and the included-components listing specifies three smoke alarms.
### Are the alarms already linked?
The maker describes the three alarms as pre-connected. The listing also provides manual pairing instructions, so test the interlinking after installation rather than assuming it is working.
### Can these alarms connect to a gateway?
The listing states that the S04-R8 is incompatible with a gateway.
### Is a remote control included?
No remote is listed in the explicit contents. The maker says a compatible infrared remote may silence the alarm, but it is not included.
### Can the battery be replaced?
The maker describes it as a sealed, non-replaceable battery with a claimed 10-year lifetime. The service-life claim is not independently verified here.

## Alternative options

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## Add-ons

- [Smoke Alarm, Interlinked Smoke and Heat Alarm Scotland Bundle, Pre-linked,10-Year Battery Life,Compliant with Scotland & Engl](https://bargainpostbox.co.uk/visit/wisualarm-s04-r8-three-piece-interlinked-smoke-alarms)
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## Images

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 1](https://bargainpostbox.co.uk/i/aqAazHKr9sXg1m1mhdCzodT7yl0eLgWFlWg-lxZ6PRPJdY45cANYOM1wDyKPF3gGZ3oFUx0csK0dBS8Ee8yCxNc9VkHnrHuu1X8QrEcqGaXJCHjqJwcQowPv.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 2](https://bargainpostbox.co.uk/i/kR8uARuMzAyYzMxdlUIHtGaBKNn6MHJOyny0Uwpit0H9RlOmDUMnFfUxAdDfmdXo8gWydqCFAjLH8ZmLrPaO0MHth9AjmTzq1xOzvnGrJUg_q69K--GqEU5T.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 3](https://bargainpostbox.co.uk/i/4SjbH_mF5-pSlc9mkGrZxX5fDki04id8tTe-jbewwb8vk3wuFMblSlSJeCl6W6wbEi7wABNBXqjasttnjxnjf8taVH2N6wqBwqdQ4akY3QxkQOF63t8_WR-e.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 4](https://bargainpostbox.co.uk/i/o-tynjoIUM2szxUZ2KGJ-E56bsGbfr4RYhRVAFvznzE85nB1mTefhFemPKQxbW2VuoYNEHUZ0iFi5WThED1lkbLoFvzQGbVI1IPmqElIU_ni29PXtZrQAuDB.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 5](https://bargainpostbox.co.uk/i/OhNAEEyhuilVQ-KDuJYXFgAXvh7V4Oj80D-paElQWo1ULSeaUXrXPRP2dE_TpUaTLBjXFnxup1GpS-j60EpQyIDgrwHw_C1_3F2oYDgyZREm2ieO9XWAJcQP.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 6](https://bargainpostbox.co.uk/i/nWKeE8hOY_-8wKsqPufsdUMVsdFRQ5VuHNBWsF6rHsDLtTRe7Ez5ABFosBVKwqB8caQZU7m_Baty-DbhBi6BsAl0nDRFY1dE0Ba7CMsGttq4T1PZiJpb7SoZ.jpg)

![WISUALARM S04-R8 \(3 Pcs\) Interlinked Smoke Alarms — 7](https://bargainpostbox.co.uk/i/b3DcmEuWkjy1JVPNaC_GqfP4mQB11Xik__xMEIGn11Dos6wrYz375BASq8USkW-wEs4c8I8t9D6Y-zCSNZSxbQ1mXP9EJ0DsN_43V2YyZIpDxQfdfjMuhjx0.jpg)