---
product_id: 522007127
title: "Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack…"
brand: "spreadtron"
price: "$90"
currency: NZD
in_stock: false
reviews_count: 13
url: https://www.desertcart.nz/products/522007127-mini-smoke-alarm-detector-10-year-battery-mini-fire-alarm
store_origin: NZ
region: New Zealand
---

# Compact 52mm size fits discreetly anywhere 10-year non-replaceable lithium battery Fast photoelectric sensor detects smoke in seconds Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack…

**Brand:** spreadtron
**Price:** $90
**Availability:** ❌ Out of Stock

## Summary

> 🚨 Small device, massive peace of mind — protect your space effortlessly!

## Quick Answers

- **What is this?** Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… by spreadtron
- **How much does it cost?** $90 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/522007127-mini-smoke-alarm-detector-10-year-battery-mini-fire-alarm)

## Best For

- spreadtron enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Loud 85dB Alarm:** Powerful alarm designed to wake even the deepest sleepers, with a convenient silence button to protect your hearing.
- • **Effortless Installation:** 3M adhesive tape enables secure, drill-free mounting in under 60 seconds—perfect for busy professionals.
- • **Instant Smoke Detection:** Advanced photoelectric sensor spots fire smoke within seconds, minimizing false alarms from dust or moisture.
- • **Decade-Long Battery Life:** Built-in 3V lithium battery lasts 10 years, eliminating the hassle of replacements and ensuring long-term safety.
- • **Sleek & Minimalist Design:** Modern, fire-retardant, and waterproof casing blends seamlessly with any ceiling or wall without being obtrusive.

## Overview

The SPREADTRON Mini Smoke Alarm Detector is a CE-certified, standalone photoelectric fire alarm featuring a highly sensitive sensor that detects smoke within seconds. Its ultra-loud 85dB alarm ensures even deep sleepers wake up, while the compact 52mm design fits discreetly in any environment. With a 10-year non-replaceable lithium battery and easy 3M tape installation, this 3-pack offers reliable, maintenance-free fire safety for homes, offices, and more.

## Description

Shop SPREADTRON Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack…. Free delivery on eligible orders of £20 or more.

Review: Beautiful Bedding - Love this , very good quality and size was perfit
Review: Good - Although a lot smaller than I imagined they make a considerable amount of noise. I fitted mine using magnetic plates and they looked fine which was very easy to do. I am pleased with my purchase and feel safer now. I just hope the battery life lasts as long as it is supposed to

## Features

- 【Fast Photoelectric Sensor】 The spreadtron photoelectric sensor of this mini smoke alarm uses high-quality chipset with professional maze design and single light source detection, which is very sensitive to fire smoke. Not only can the danger be detected in a few seconds, but also the false alarm will not be caused by dust, insects and moisture.
- 【85dB Loud Alarm & Silence Button】 The smoke detector has an ultra-loud alarm over 85dB, which is suitable for deep sleepers. Even with earplugs, this fire alarm can wake you up and protect your health. At the same time, 85dB Loud Alarm has a silence button, and one-button mute protects your hearing.
- 【Small and Modern Style】Fire retardant materials, excellent compact and waterproof design, not so conspicuous on the ceiling, and harmonious with the surrounding environment. The compact and small size of 52mm*52mm is one quarter of that of the traditional smoke alarm, which is suitable for more places, including homes/shops/companies/schools/mobile houses.
- 【Fast Installation within 60s】The weight of an independent mini photoelectric smoke alarm is about one third of that of a traditional smoke alarm,and it is equipped with a 3M sticker, which can be installed within 30-60s. Not easy to drop, no need to punch holes, independently installed on the ceiling and wall.
- 【Non-replaceable 10-year Battery Life】 This photoelectric smoke detector is equipped with a 3V low-power lithium battery, with a 10-year battery long life and a high-capacity 1400mAh battery, which can be used for a long time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BK71M7ML |
| Batteries | 3 CR123A batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Lithium Metal |
| Best Sellers Rank | 241,059 in DIY & Tools ( See Top 100 in DIY & Tools ) 354 in Smoke Alarms |
| Colour | White |
| Coverage | 20-40m2 |
| Customer Reviews | 4.1 4.1 out of 5 stars (200) |
| Date First Available | 23 Oct. 2022 |
| Included Components | Batteries |
| Installation method | Prepaste |
| Item Package Quantity | 3 |
| Item Weight | 210 g |
| Item model number | ZR170S |
| Manufacturer | SPREADTRON |
| Material | ABS |
| Part Number | ZR170S |
| Power Source | Battery Powered |
| Product Dimensions | 5.2 x 5.2 x 5.2 cm; 210 g |
| Shape | Circular |
| Size | Small |
| Style | Electronic |
| Switch style | Push Button |
| Usage | Inside; Professional |
| Voltage | 3 Volts (DC) |

## Product Details

- **Alarm:** Visual
- **Brand:** SPREADTRON
- **Colour:** White
- **Item weight:** 210 Grams
- **Material:** ABS
- **Power source:** Battery Powered
- **Product dimensions:** 5.2D x 5.2W x 5.2H centimetres
- **Sensor type:** Photoelectric
- **Style:** Electronic
- **Upper temperature rating:** 55 Degrees Celsius

## Images

![Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… - Image 1](https://m.media-amazon.com/images/I/31zuVgaSzWL.jpg)
![Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… - Image 2](https://m.media-amazon.com/images/I/41ESoL+sKPL.jpg)
![Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… - Image 3](https://m.media-amazon.com/images/I/41RK-b8BZML.jpg)
![Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… - Image 4](https://m.media-amazon.com/images/I/41V5AAW-XoL.jpg)
![Mini Smoke Alarm Detector,10-Year Battery Mini Fire Alarm, Standalone Photoelectric Fire Detector, CE Certified Smoke Detector with 3M Adhesive Tape, SP-ZR170S, 3-Pack… - Image 5](https://m.media-amazon.com/images/I/41x6Oxa-F2L.jpg)

## Questions & Answers

**Q: If one goes off, do the others start beeping too?**
A: No the alarms all work independently of each other

**Q: Is this freestanding as well please? I don’t want it on the wall or ceiling**
A: Yes the alarm could be freestanding but I wouldn't recommend, it as smoke rises to set off the alarm plus with ceiling mounting you get far better room coverage

**Q: Will this go off if someone vapes close to it?**
A: Not sure. Although a spray deodorant set ours off once when husband sprayed too much!

**Q: Will the adhesive disc remove paint or wall paper when the monitor is taken down?**
A: Why would you want to take it down,the battery is good for 10 years.
Stick it up and forget about it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Beautiful Bedding
*by J***N on 20 July 2025*

Love this , very good quality and size was perfit

### ⭐⭐⭐⭐⭐ Good
*by M***W on 30 November 2023*

Although a lot smaller than I imagined they make a considerable amount of noise. I fitted mine using magnetic plates and they looked fine which was very easy to do. I am pleased with my purchase and feel safer now. I just hope the battery life lasts as long as it is supposed to

### ⭐⭐⭐⭐ Small But Mighty
*by J***H on 24 March 2025*

Coming from a background in health and safety auditing, particularly with reference to ISO 45001 standards, I approach home safety products with a critical eye. It’s not just about ticking boxes or meeting minimal legal compliance; it’s about making practical, effective decisions that reduce real-world risk. So when I decided to add the SPREADTRON Mini Smoke Alarm Detectors to my home setup, I was doing more than simply buying a product — I was selecting a safety solution I could endorse from both a personal and professional standpoint. The SPREADTRON mini smoke alarms immediately appealed to me due to their standout specifications: a compact, minimalist design measuring just 52mm in diameter; a ten-year sealed lithium battery; a photoelectric sensor for responsive smoke detection; and compliance with EN14604:2005+AC:2008 standards. I bought a pack of three with the intent to install one in each bedroom, keeping the home covered without resorting to large, unsightly devices. What struck me first was the design. Aesthetically, these smoke detectors are subtle and modern — no more than a white disc that blends cleanly into white ceilings or walls. They are constructed from fire-retardant ABS material, which gives both the body and mounting base a sense of light durability. This is a welcome departure from the clunky traditional units that look dated and industrial in residential settings. The finish is matte, reducing reflections and keeping it low-profile. There are no visible flashing LEDs or protruding test buttons — everything is integrated thoughtfully. Installation was refreshingly simple. Each unit comes with a 3M adhesive pad pre-attached, which meant no tools or drilling were required. For anyone with mobility concerns or in rented housing where permanent fixtures aren't ideal, this alone makes it an excellent option. Despite my initial scepticism about the adhesive holding over time, it has proved secure across textured paint and even a slightly uneven surface in one of the rooms. The total installation time per unit was under a minute. Now on to functionality. The SPREADTRON smoke detector uses a photoelectric sensor — which, in real-world terms, means it’s better at detecting slow-smouldering fires (like electrical faults or mattress fires) than ionisation alarms, which often react faster to fast-flaming events. In most domestic settings, especially bedrooms, this kind of detection is ideal. It's quiet most of the time, but highly sensitive when it needs to be. I tested each unit with controlled smoke using an incense stick, and they all triggered within approximately 10–15 seconds, emitting a strong 85dB alarm. The alarm volume deserves a separate mention. At 85dB measured at three metres, it's loud enough to wake a deep sleeper but not so piercing as to induce panic. This is a fine balance to achieve, and it has clearly been engineered with careful attention to acoustics. Additionally, the presence of a silence button means you can mute the device quickly in the event of a false trigger, which is especially valuable in small homes or flats where kitchens and sleeping areas might be close together. One of the more technical aspects I appreciate is the self-test and low battery functionality. Each detector performs regular internal checks, and a red LED flashes alongside a tone if an issue is detected. There’s also a low battery warning, which is critical in any system expected to run autonomously for a decade. It ensures that should anything compromise the unit — manufacturing fault, power degradation, or age — the user is notified with enough lead time to act responsibly. The battery itself is a 3V 1400mAh lithium cell, sealed into the unit for the full ten-year lifespan. This non-replaceable approach aligns with current best practices in long-life smoke alarms, where user error (like not replacing a battery) is effectively eliminated. From a maintenance perspective, this design means zero upkeep: no need to remember to test batteries, and no anxiety about whether a flat battery is quietly compromising your safety. Placement versatility is another major plus. Because these units are so compact and light, they can be placed not only in traditional locations like bedroom ceilings, but also in tighter or more aesthetically sensitive spaces such as hallways, stairwells, small studios, or even inside closets housing electrical panels. I personally installed one above the bedroom doorframe, which offers central coverage without disrupting the clean ceiling lines. From a safety culture point of view, devices like the SPREADTRON mini alarm empower homeowners and tenants alike to take simple steps toward a safer home. It’s not just about meeting insurance policy minimums; it’s about building everyday awareness and control over our living environments. These small devices — through thoughtful design and reliable engineering — support that mindset. In terms of performance over time, I’ll be closely observing longevity. The 10-year battery claim is standard across premium alarms, but not all actually deliver. However, based on materials, build quality, and the manufacturer’s documented certification, I am confident these detectors are built to endure. The operating temperature range of -10°C to 55°C also gives peace of mind for unheated rooms or lofts. For professionals in safety, this kind of device aligns well with principles of hazard prevention, user-centred design, and ease of deployment. For families, it provides fast, quiet peace of mind. For minimalists or design-conscious homeowners, it finally removes the aesthetic obstacle that traditional smoke detectors posed. Ultimately, SPREADTRON’s mini smoke alarms strike a balance between reliability, discretion, and modern usability. They are a smart, health-and-safety-conscious investment — especially for multi-room coverage where a full system installation may be excessive or invasive. This is a product I’d confidently recommend in both a professional audit context and in casual conversation. It delivers on its promises and enables better personal protection with minimal friction, which is what great safety equipment should always do.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-22*