---
product_id: 506033166
title: "Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10"
brand: "ultrafire fire safety"
price: "€ 56.88"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/506033166-replacement-alarm-for-fireangel-so-601-10-year-sealed-battery
store_origin: FI
region: Finland
---

# 10-year battery life False alarm reduction Twist-on installation Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10

**Brand:** ultrafire fire safety
**Price:** € 56.88
**Availability:** ✅ In Stock

## Summary

> 🔔 Stay Alert, Stay Safe!

## Quick Answers

- **What is this?** Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 by ultrafire fire safety
- **How much does it cost?** € 56.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/506033166-replacement-alarm-for-fireangel-so-601-10-year-sealed-battery)

## Best For

- ultrafire fire safety enthusiasts

## Why This Product

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

## Key Features

- • **🔇 Smart Silence:** Silence low battery chirps for up to 10 hours.
- • **⚡ Effortless Setup:** Simple twist-on installation activates the alarm automatically.
- • **🔋 Long-lasting Power:** 10-year sealed lithium battery ensures reliability.
- • **🔒 Seamless Compatibility:** Easily replaces FireAngel SO-601 with an adapter plate.
- • **🛡️ Trusted Safety Standards:** CE and Kitemarked to BS EN 14604: 2005 for peace of mind.

## Overview

The UltraFire ULLS10 is a replacement optical smoke alarm designed for seamless integration with the discontinued FireAngel SO-601. Featuring a 10-year sealed battery, easy twist-on installation, and advanced false alarm reduction technology, this alarm ensures your safety without the hassle. With a 10-year manufacturer's warranty and compliance with safety standards, it's the smart choice for modern living.

## Description

Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10

## Features

- This replacement alarm is for the discontinued FireAngel SO-601. It is manufactured by UltraFire and fits onto the original base plate using an adapter plate
- Simple twist-on installation with automatic activation when attached to the adapter plate
- Dimensions (H x Dia): ULLS10 Optical Smoke Alarm: 34 x 84mm. Adaptor Plate: 3.8 x 117mm
- Large combined test and silence button
- X-Profile detection chamber, designed specifically to reduce false alarms. End of life / low battery chirps can be silenced up to 10 hours
- CE marked and Kitemarked to BS EN 14604: 2005. Suitable for installations complying to BS 5839-6 Grade F1.
- Battery: 10-year sealed lithium battery. Warranty: 10-year manufacturer's warranty
- Please Note: The FHSAP adaptor plate is used for mounting the ULLS10 smoke alarm to an existing FireAngel SO-601 base plate – do not use the standard base plate included in the box with the ULLS10 smoke alarm as well. The standard base plate is only intended for use on its own to directly mount a ULLS10 to the ceiling rather than for replacing an SO-601

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | UltraFire |
| Package Dimensions | 9.3 x 9.3 x 6.2 cm; 170 Grams |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | UFULLS10 |
| Style | Simple |
| Shape | Circular |
| Power Source | Battery Powered |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Manganese Dioxide |
| Item Weight | 170 g |

## Images

![Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 - Image 1](https://m.media-amazon.com/images/I/61OgFfnEUtL.jpg)
![Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 - Image 2](https://m.media-amazon.com/images/I/51GmkV9KAAL.jpg)
![Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 - Image 3](https://m.media-amazon.com/images/I/31vLPeidvPL.jpg)
![Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 - Image 4](https://m.media-amazon.com/images/I/41-ht56EZrL.jpg)
![Replacement Alarm for FireAngel SO-601 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10 - Image 5](https://m.media-amazon.com/images/I/31S-IAn8A-L.jpg)

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**Shop now:** [https://www.desertcart.fi/products/506033166-replacement-alarm-for-fireangel-so-601-10-year-sealed-battery](https://www.desertcart.fi/products/506033166-replacement-alarm-for-fireangel-so-601-10-year-sealed-battery)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-01*