---
product_id: 60191122
title: "Mercury, SD102P, Smoke Alarm for Home Photoelectric Battery Smoke Alarm Smoke Detector with Large Hush/Test Button, Supplied with Battery And Fixing Kit Fully Certified, White, 1 unit, Matte Finish"
brand: "mercury"
price: "91.88 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Mercury"
url: https://www.desertcart.tn/products/60191122-mercury-sd102p-smoke-alarm-for-home-photoelectric-battery-smoke-alarm
store_origin: TN
region: Tunisia
---

# Large hush button for 10-min silence 9V battery included Fixing kit for easy install Mercury, SD102P, Smoke Alarm for Home Photoelectric Battery Smoke Alarm Smoke Detector with Large Hush/Test Button, Supplied with Battery And Fixing Kit Fully Certified, White, 1 unit, Matte Finish

**Brand:** mercury
**Price:** 91.88 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay safe, stay savvy — smoke detection that’s a step ahead! 🏠

## Quick Answers

- **What is this?** Mercury, SD102P, Smoke Alarm for Home Photoelectric Battery Smoke Alarm Smoke Detector with Large Hush/Test Button, Supplied with Battery And Fixing Kit Fully Certified, White, 1 unit, Matte Finish by mercury
- **How much does it cost?** 91.88 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/60191122-mercury-sd102p-smoke-alarm-for-home-photoelectric-battery-smoke-alarm)

## Best For

- mercury enthusiasts

## Why This Product

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

## Key Features

- • **Smart Silence Mode:** Large hush button lets you pause alarms for 10 minutes—perfect for cooking or steam.
- • **Clear Status Alerts:** Simple test button with vocal confirmation ensures your alarm is always operational.
- • **Effortless Installation:** Comes with 9V battery and mounting kit—ready to secure your home in minutes.
- • **Instant Smoke Detection:** Photoelectric sensor reacts swiftly to slow-burning fires, reducing false alarms.
- • **Certified UK Safety Assurance:** Fully compliant with British safety standards for ultimate peace of mind.

## Overview

The Mercury SD102P is a UK-certified photoelectric smoke alarm designed for reliable home safety. Featuring a large hush/test button, it offers quick smoke detection with minimal false alarms, powered by an included 9V battery and complete with a fixing kit for hassle-free installation. Its vocal alerts and visual signals keep you confidently informed, making it an essential, sleek addition to any modern home.

## Description

From the manufacturer Mercury | Smoke Detector for Homes | Photoelectric Smoke Detector with Hush/Test Feature A fire detector that is Lightweight and sleek in design, all while being powered from one single 9v battery, which is supplied, along with all mounting screws and plugs needed for an easy install of your new battery smoke alarm. The Mercury Photoelectric Battery Smoke Alarm with Hush/Test Button is fully certified, conforming to all British legislation for complete peace of mind. Photoelectric alarms are less likely to trigger false alarms from Kitchen or bathroom steam than traditional ionization alarms. Did you know it's strongly recommended that you have at least one smoke alarm installed on each floor of a residential home. PRODUCT FEATURES UK CERTIFIED SAFETY - Smoke detectors, smoke alarms save lives and put your mid at ease BATTERY AND FIXINGS ARE INCLUDED - Mounting materials and 9V battery are included with this home fire alarm LARGE HUSH BUTTON - Reduce your smoke alarms sensitivity for a ten minute period with one simple button press on this smoke alarm for homes PHOTOELECTIC TECHNOLOGY - optical sensing of smoke is detected with speed, it enters the alarm chamber, Providing a quick reaction to slow burning fires SIMPLE AND EASY TEST BUTTON - Peace of mind with the simple push of a button, notifying you your home smoke alarm is fully operational with a vocal alert SPECIFICATION Battery 1 x 9V PP3 (supplied) Alarm output 85dB @ 3m Operating temperature -10 to 40°C Static working current <12µA Mounting hole centres 70mm Dimensions 34 x 101mmØ Weight 136g (with battery) BOX CONTAINS 1 x Smoke detector 1 x 9V battery 1 x Fixing kit 1 x User guide

Review: Nice smoke alarm - Fantastic, what a good quality performing very well.
Review: Good product at a good price - My reason for only four stars was because it was not clear to me that the red security tab had to be pushed down rather than, as I had imagined, allowed to protrude through one of the openings on the back plate. Had I examined the device when I took it out of the box, I would have realised that the red tab was hidden. When I managed to figure it out and had inserted the battery (provided), I was impressed to see a red blinking light and a good sized test button. Unfortunately, because this detector is smaller than my original, I could not utilise the existing screw holes. That problem was avoided by using magnitised discs also purchased at the same time.

## Features

- Simple and easy test button notifies that your home smoke alarm is fully operational with a vocal alert
- UK certified safety Smoke detectors | smoke alarms save lives and put your mind at ease
- Battery and fixings are included | mounting materials and 9V battery are included with this home fire alarm
- Large hush button Reduce your smoke alarms sensitivity for a ten minute period with one simple button press on this smoke alarm for homes
- Photoelectric technology optical sensing of smoke is detected with speed, it enters the alarm chamber, Providing a quick reaction to slow burning fires
- Visual and audible | With the Mercury battery smoke alarm you have alerts both audible and visual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06W58SDCB |
| Batteries | 1 P76 batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 15,270 in DIY & Tools ( See Top 100 in DIY & Tools ) 78 in Smoke Alarms |
| Blade length | 101 Inches |
| Colour | White |
| Coverage | 10 |
| Customer Reviews | 4.4 4.4 out of 5 stars (901) |
| Date First Available | 18 Feb. 2017 |
| Finish | Matt |
| Included Components | 1 x Smoke detector 1 x 9V battery 1 x Fixing kit 1 x User guide |
| Item Package Quantity | 1 |
| Item Weight | 136 g |
| Item model number | SD102P |
| Manufacturer | Mercury |
| Material | Plastic |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | SD102P |
| Power Source | Battery Powered |
| Product Dimensions | 10.1 x 10.1 x 3.4 cm; 136 g |
| Shape | Circular |
| Size | Standard |
| Style | STANDARD |
| Switch style | Push Button |
| Usage | Inside |
| Voltage | 9 Volts |

## Product Details

- **Alarm:** Audible and visual
- **Brand:** MERCURY
- **Colour:** White
- **Compatible devices:** Fire Alarm
- **Item weight:** 0.14 Kilograms
- **Power source:** Battery Powered
- **Product dimensions:** 10.1D x 10.1W x 3.4H centimetres
- **Sensor type:** Photoelectric
- **Style:** STANDARD
- **Upper temperature rating:** 40 Degrees Celsius

## Images

![Mercury, SD102P, Smoke Alarm for Home Photoelectric Battery Smoke Alarm Smoke Detector with Large Hush/Test Button, Supplied with Battery And Fixing Kit Fully Certified, White, 1 unit, Matte Finish - Image 1](https://m.media-amazon.com/images/I/51fXOyL9AnL.jpg)

## Questions & Answers

**Q: What is expected battery life duration?**
A: Not had mine long enough yet for the battery to go

**Q: can it be used on a caravan wall?**
A: Preferably  on the ceiling.  Not too close to a direct heat source

**Q: Ok this is a daft question so please be kind...having difficulty getting the back of the unit back on.Does the security arm lay flat or not .?**
A: Hiya, push the arm down into the compartment then put the battery in.

Hope this was helpful

**Q: I'm looking for an alarm that will go off with cigarette smoke is does this pick it up?**
A: I do not smoke, so I do not know the answer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice smoke alarm
*by I***O on 15 November 2025*

Fantastic, what a good quality performing very well.

### ⭐⭐⭐⭐ Good product at a good price
*by P***R on 21 June 2023*

My reason for only four stars was because it was not clear to me that the red security tab had to be pushed down rather than, as I had imagined, allowed to protrude through one of the openings on the back plate. Had I examined the device when I took it out of the box, I would have realised that the red tab was hidden. When I managed to figure it out and had inserted the battery (provided), I was impressed to see a red blinking light and a good sized test button. Unfortunately, because this detector is smaller than my original, I could not utilise the existing screw holes. That problem was avoided by using magnitised discs also purchased at the same time.

### ⭐⭐⭐⭐⭐ Works well
*by C***E on 17 November 2025*

Super fast delivery service available 👍 good price

## Frequently Bought Together

- Mercury, SD102P, Smoke Alarm for Home Photoelectric Battery Smoke Alarm Smoke Detector with Large Hush/Test Button, Supplied with Battery And Fixing Kit Fully Certified, White, 1 unit, Matte Finish
- FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button
- Mini LCD Carbon Monoxide Detector CO Alarm Detector, fit for house, Car,trip，Comply with EN50291

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/60191122-mercury-sd102p-smoke-alarm-for-home-photoelectric-battery-smoke-alarm](https://www.desertcart.tn/products/60191122-mercury-sd102p-smoke-alarm-for-home-photoelectric-battery-smoke-alarm)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-02-06*