---
product_id: 60998986
title: "FD-4S"
brand: "forensics detectors fd"
price: "¥95571"
currency: JPY
in_stock: true
reviews_count: 6
category: "Forensics Detectors Fd"
url: https://www.desertcart.jp/products/60998986-fd-4s
store_origin: JP
region: Japan
---

# Color LCD + Graphs 500 Alarm Data Logs 4 Electrochemical Sensors FD-4S

**Brand:** forensics detectors fd
**Price:** ¥95571
**Availability:** ✅ In Stock

## Summary

> 🌟 Stay ahead of danger with precision and style—FD-4S, your ultimate gas guardian!

## Quick Answers

- **What is this?** FD-4S by forensics detectors fd
- **How much does it cost?** ¥95571 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/60998986-fd-4s)

## Best For

- forensics detectors fd enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Rugged ABS body with anti-slip grip, waterproof, dust-proof, and explosion-proof design.
- • **Precision Sensing:** Detects O2, CO, H2S, and Combustibles with USA NIST-traceable accuracy.
- • **Data-Driven Safety:** Stores up to 500 alarm events with computer data logging for compliance and analysis.
- • **Certified Confidence:** Comes with calibration certificate, QA verification, and 1-year limited warranty.
- • **Instant Ready-to-Use:** Factory calibrated for immediate deployment—turn it on and trust the data.

## Overview

The FD-4S is a professional-grade 4-gas detector featuring a vibrant color LCD with graphing, high-accuracy electrochemical sensors for oxygen, carbon monoxide, hydrogen sulfide, and combustibles, and robust data logging capabilities. Factory calibrated in the USA with NIST-traceable standards, it offers rugged durability with waterproof and explosion-proof housing, making it ideal for industrial, utility, and emergency response professionals who demand reliable, ready-to-use gas detection.

## Description

Product Description 4 gas detectors and multi-gas detectors Forensics Detectors offers sensitive 4 gas and multi-gas detectors for professional use. Ideal for utilities, refineries, fire brigades and maintenance teams, as well as for work in sewers, waterworks, underground tanks, on oil rigs. 4 gas detectors Easy to use. This is our Forensics Detectors Professional 4 Gas Meter with Pump System. It has advanced features and is equipped with high-quality electrochemical gas sensors, a 32-bit microprocessor with colour LCD display, data logging and graphical display. EU calibration Rely on the highest accuracy of your gas detection. This is ensured by best calibration procedures with EU traceable sources. The calibration of this gas detector is done in the laboratory of Forensics Detectors. Included in the box contents Stainless steel belt clip Calibration cap and screw USB charging cable EU calibration document Based in the EU User manual (English language not guaranteed) Technical specifications

Review: Quality gas meter - Very good gas meter. Quality and reliable product. Happy to use.
Review: PRODUCTO NO VALIDO PARA EUROPA - este producto no esta certificado con normativa ATEX europea. Esta prohibida su distribucion y venta en Europa, engañan al decir que tiene calibracion europea.. esto es verdad. viene con esta calibracion, pero no con la certificacion. a la hora de devolverlo es practicamente imposible , faltan sus datos como el nif , el email de la persona de contacto de la devolucion y por supuesto admiten la devolucion a portes que corren por tu cuenta. por otra parte la factura viene desde USA y no desde Grecia (UE) que es su centro de logistica europeo por tanto tambien te comes el IVA. NO PUEDEN VENDERLO EN EUROPA Y LA DEVOLUCION LA HACEN IMPOSIBLE.

## Features

- 🌈 COLOR DISPLAY: Color screen and Graph functions. Comes FACTORY CALIBRATED. Turn ON and GO.
- 🔬 ACCURATE: High quality electrochemical sensors Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S) and Combustibles (LEL). USA NIST factory calibrated.
- 📲 DATA LOGGING: Stores 500 alarm records. Computer Data Logging.
- 💪 STRONG: Robust design made of high strength ABS and Anti-slip grip rubber. Waterproof, dust-proof and explosion-proof.
- 🕵️ TRUST: ** 1 year limited warranty ** Arrives with calibration and QA certificate ** 100% product test and verification in the USA ** 100% quality guaranteed **

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B4LKGQM |
| Alarm | Visual |
| Battery Average Life | 12 Hours |
| Best Sellers Rank | 528,045 in DIY & Tools ( See Top 100 in DIY & Tools ) 251 in Gas Detectors |
| Brand | FORENSICS DETECTORS FD |
| Colour | Black |
| Country of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 92 Reviews |
| Item Dimensions D x W x H | 3D x 6.7W x 13H centimetres |
| Item Weight | 0.2 Pounds |
| Item weight | 0.2 Pounds |
| Manufacturer | FORENSICS DETECTORS |
| Model Number | FD-4S |
| Operating Humidity | 95 percent |
| Part Number | YR-G6Y8-HA75 |
| Power source | Battery Powered |
| Product Style | Robust |
| Product dimensions | 3D x 6.7W x 13H centimetres |
| Sensor Type | Electrochemical |
| Style | Robust |
| Unit Count | 1.0 count |

## Product Details

- **Alarm:** Visual
- **Battery life:** 12 Hours
- **Brand:** FORENSICS DETECTORS FD
- **Colour:** Black
- **Item weight:** 0.2 Pounds
- **Manufacturer:** FORENSICS DETECTORS
- **Operating humidity:** 95 percent
- **Power source:** Battery Powered
- **Sensor type:** Electrochemical
- **Style:** Robust

## Images

![FD-4S - Image 1](https://m.media-amazon.com/images/I/71xfuChWhlL.jpg)
![FD-4S - Image 2](https://m.media-amazon.com/images/I/81MqKl8oW6L.jpg)
![FD-4S - Image 3](https://m.media-amazon.com/images/I/71MmAEVAeOL.jpg)
![FD-4S - Image 4](https://m.media-amazon.com/images/I/81ZkEUkBbgL.jpg)
![FD-4S - Image 5](https://m.media-amazon.com/images/I/81uaI+UaUEL.jpg)

## Questions & Answers

**Q: when measuring oxygen readings, can you set a range of time, duration or frequency for data logging?**
A: Great question, see video for a detailed answer.

**Q: will this unit pick up propane and natural gas leaks during a home inspection?**
A: This is not made to pick up leaks during a home inspection. What would be more appropriate is a gas leak detector with GOOSE NECK. The gas leak detector is more sensitive (in ppm) range where this detector is a LEL % detector, for exposure safety purposes.

**Q: Does this 4 gas detector come with a clip to attach to my FR shirt?**
A: The detector has installed on its back a belt clip. Thanks

**Q: Is there a calibration kit available?**
A: The detector comes with a calibration cap to be plugged into calibration gas.
 For calibration, a standard mixed gas NIST gas bottle with a regulator will work very well. Our recommended product is ASIN: B015O16X32.
Multi Calibration Gas: 25 PPM Hydrogen Sulfide, 100 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 19% Oxygen, Balance Nitrogen

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality gas meter
*by M***S on 14 January 2019*

Very good gas meter. Quality and reliable product. Happy to use.

### ⭐ PRODUCTO NO VALIDO PARA EUROPA
*by D***S on 16 April 2026*

este producto no esta certificado con normativa ATEX europea. Esta prohibida su distribucion y venta en Europa, engañan al decir que tiene calibracion europea.. esto es verdad. viene con esta calibracion, pero no con la certificacion. a la hora de devolverlo es practicamente imposible , faltan sus datos como el nif , el email de la persona de contacto de la devolucion y por supuesto admiten la devolucion a portes que corren por tu cuenta. por otra parte la factura viene desde USA y no desde Grecia (UE) que es su centro de logistica europeo por tanto tambien te comes el IVA. NO PUEDEN VENDERLO EN EUROPA Y LA DEVOLUCION LA HACEN IMPOSIBLE.

### ⭐⭐ No es de buena calidad
*by E***A on 5 June 2023*

Ya solo funciono 2 semanas y ya lo hace las lecturas , tubimos una fuga de gas y nunca la detecto

## Frequently Bought Together

- Multigas 4 Gas Monitor | with USA NIST Calibration Certificate | CO, H2S, CO, EX LEL |
- Gas Sampling Pump by Forensics | Stainless Steel Probe | Made for Gas Detectors & Meters | Flow Rate: 0.5LPM, 500cc/min | Strong ABS | USB Recharge |

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-21*