---
product_id: 294743469
title: "FG250B Dual Ionization Smoke Alarm with 9-Volt Battery"
brand: "first alert"
price: "¥12855"
currency: JPY
in_stock: true
category: "First Alert"
url: https://www.desertcart.jp/products/294743469-fg250b-dual-ionization-smoke-alarm-with-9-volt-battery
store_origin: JP
region: Japan
---

# Tamper-Resistant Locking Pin for secure safety Silence Feature to stop nuisance alarms instantly Dual Ionization Sensor for fast fire detection FG250B Dual Ionization Smoke Alarm with 9-Volt Battery

**Brand:** first alert
**Price:** ¥12855
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of danger with smart, silent protection!

## Quick Answers

- **What is this?** FG250B Dual Ionization Smoke Alarm with 9-Volt Battery by first alert
- **How much does it cost?** ¥12855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/294743469-fg250b-dual-ionization-smoke-alarm-with-9-volt-battery)

## Best For

- first alert enthusiasts

## Why This Product

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

## Key Features

- • **Secure & Reliable:** Tamper-resistant locking pin ensures your alarm stays powered and in place, protecting your space.
- • **RV Approved Safety:** Certified for RV use, making it perfect for your mobile lifestyle or home.
- • **Rapid Fire Detection:** Dual Ionization sensing chamber detects fast-flaming fires before they spread.
- • **Ready Out of the Box:** Includes a 9-volt battery so you’re protected immediately—no extra purchases needed.
- • **Peace of Mind Silence:** Easily silence false alarms with the convenient silence feature—no more annoying disruptions.

## Overview

The First Alert FG250B is a compact, battery-powered dual ionization smoke alarm featuring a silence button to reduce nuisance alerts and a tamper-resistant locking pin for enhanced security. It includes a 9-volt battery and is approved for RV use, delivering reliable, fast fire detection in a sleek, easy-to-install design.

## Description

First Alert FG250B Dual Ionization Smoke Alarm with 9-Volt Battery : desertcart.in: Home Improvement

## Features

- Dual Ionization Sensing Chamber
- Silence Feature Silences Nuisance Alarms
- Tamper Resistant Locking Pin Locks Alarm Cover to Prevent Removal of Battery
- 9V Battery Included
- Approved for RV Use
- Package Contents: 1 Piece Dual Ionization Smoke Alarm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002RLQZ2M |
| Alarm | Audible |
| Best Sellers Rank | #222,875 in Home Improvement ( See Top 100 in Home Improvement ) #423 in Fire Safety |
| Brand | First Alert |
| Country of Origin | USA |
| Global Trade Identification Number | 00029054003003 |
| Included Components | 1 Piece Dual Ionization Smoke Alarm |
| Item Dimensions LxWxH | 10.8 x 10.8 x 4.1 Centimeters |
| Item Weight | 90.7 g |
| Item model number | FG250B |
| Manufacturer | Jarden Safety |
| Net Quantity | 1.0 Count |
| Power Source | Battery Powered |
| Product Dimensions | 10.8 x 10.8 x 4.06 cm; 90.72 g |
| Sensor Type | Ionization |
| Style | Compact |
| UPC | 029054003003 |

## Product Details

- **Alarm:** Audible
- **Brand:** First Alert
- **Global Trade Identification Number:** 00029054003003
- **Item Weight:** 91 g
- **Manufacturer:** Jarden Safety
- **Power Source:** Battery Powered
- **Sensor Type:** Ionization
- **Style:** Compact
- **UPC:** 029054003003

## Images

![FG250B Dual Ionization Smoke Alarm with 9-Volt Battery - Image 1](https://m.media-amazon.com/images/I/515KrUSiFzL.jpg)

## Questions & Answers

**Q: Does this smoke alarm blink or flash?  Looking for one that does not flash or blink to show it is working properly. Thank you.**
A: Yes it does have an LED to ensure the battery is properly connected and supplying power.

**Q: Is the alarm a continuous sound or an intermittent type sound?**
A: intermittent beeping sound

**Q: HOW TO OPEN**
A: You have to pry one side away from the base and then it opens.

**Q: Installed and removed plastic tad form battery, red indicator light is on.  Where is the "full function test switch"?  Unable to test to verify alarm.**
A: Puts the test button, you will get a spoken response on what tone you will hear for fire and a separate one for carbon monoxide. Replace batteries each year at fall time change.

## Frequently Bought Together

- FIRST ALERT BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, 1", White
- FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features
- Safe T Alert - Classic LP Gas Alarm - Flush Mount Black - 30-442-P-BL

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**Shop now:** [https://www.desertcart.jp/products/294743469-fg250b-dual-ionization-smoke-alarm-with-9-volt-battery](https://www.desertcart.jp/products/294743469-fg250b-dual-ionization-smoke-alarm-with-9-volt-battery)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-28*