---
product_id: 84564508
title: "FD-90A-H2"
brand: "forensics detectors fd"
price: "¥33299"
currency: JPY
in_stock: true
category: "Forensics Detectors Fd"
url: https://www.desertcart.jp/products/84564508-fd-90a-h2
store_origin: JP
region: Japan
---

# USB rechargeable for nonstop use 0.1ppm ultra-precise detection Dust, shock & explosion proof ruggedness FD-90A-H2

**Brand:** forensics detectors fd
**Price:** ¥33299
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay ahead of danger with precision and power — because safety waits for no one!

## Quick Answers

- **What is this?** FD-90A-H2 by forensics detectors fd
- **How much does it cost?** ¥33299 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/84564508-fd-90a-h2)

## 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

- • **Ready When You Are:** Factory calibrated and zero/span adjustable for hassle-free, on-the-go monitoring.
- • **Triple-Alert System:** Sound, light, and vibration alarms keep you instantly informed in any environment.
- • **Precision You Can Trust:** USA NIST calibrated with ±5% accuracy ensures your safety is never compromised.
- • **Power Up & Stay Protected:** USB rechargeable battery keeps you powered without downtime or extra costs.
- • **Built for the Harshest Conditions:** Dustproof, shockproof, and explosion-proof design means it works where others fail.

## Overview

The Forensics H2S Monitor is a professional-grade gas detector calibrated to USA NIST standards, offering ultra-precise hydrogen sulfide detection from 0 to 100ppm with 0.1ppm resolution. Its rugged, explosion-proof ABS enclosure withstands dust, shocks, and harsh environments, while triple alarms (sound, light, vibration) ensure immediate alerts. USB rechargeable and factory calibrated, it’s designed for reliable, on-the-go safety monitoring backed by a 1-year warranty and quality certification.

## Description

H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S |: desertcart.com: Tools & Home Improvement

## Features

- 🔬 ACCURATE: Hydrogen Sulfide Meter 0-100ppm with 0.1ppm resolution. USA NIST Calibration. Turn ON and GO.
- ⚛️ DETECT: Electrochemical cell sensor with accuracy: ≤±5% F.S. and response time: T<30s. Zero and span calibration options. Comes factory calibrated.
- 🎆 ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. Alarm digital time stamp and logging.
- 💪 STRONG: Shock proof, water proof, dust proof and explosion proof with belt clip.
- 🕵️ 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 | B07GF7XK2D |
| Alarm | Audible, Visual |
| Best Sellers Rank | #189,637 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #115 in Gas Detectors & Alarms |
| Brand | FORENSICS DETECTORS FD |
| Color | Black, Yellow |
| Customer Reviews | 4.0 4.0 out of 5 stars (77) |
| Enclosure Material | ABS |
| Item Dimensions D x W x H | 1.7"D x 2.3"W x 4.3"H |
| Item Weight | 130 g |
| Manufacturer | FORENSICS |
| Mfr Part Number | FD-90A-H2S |
| Model Number | FD-90A-H2S |
| Operating Humidity | 95 percent |
| Power Source | Battery Powered |
| Product Style | modern |
| Sensor Type | Electrochemical |
| Unit Count | 1 Count |

## Product Details

- **Alarm:** Audible, Visual
- **Brand:** FORENSICS DETECTORS FD
- **Color:** Black, Yellow
- **Item Weight:** 130 g
- **Material:** ABS
- **Operating Humidity:** 95 percent
- **Power Source:** Battery Powered
- **Product Dimensions:** 1.7"D x 2.3"W x 4.3"H
- **Sensor Type:** Electrochemical
- **Style:** modern

## Images

![FD-90A-H2 - Image 1](https://m.media-amazon.com/images/I/71ePiuakrML.jpg)
![FD-90A-H2 - Image 2](https://m.media-amazon.com/images/I/417ZlJ5jeAL.jpg)
![FD-90A-H2 - Image 3](https://m.media-amazon.com/images/I/51cvr9OSTeL.jpg)
![FD-90A-H2 - Image 4](https://m.media-amazon.com/images/I/51TsKp3T7KL.jpg)
![FD-90A-H2 - Image 5](https://m.media-amazon.com/images/I/51iY5WgNDTL.jpg)

## Questions & Answers

**Q: I see in one of the photos there is the detector then a pump and probe.  Do you need both items to monitor H2S in the air?**
A: No you dont. If you just want to monitor the air in ambient conditions, like in a room, then simply placing the detector and registering results is OK. However in some cases, where there are isolated spaces or in toxic spaces (large drains) where it may be dangerous for one to walk in with the detector, a gas sampling probe would be warranted in such a case to sample the air from the "danger zone" and draw it to the detector which would be in the "safe zone". Thanks, Sarah Kong (FORENSICS via Amazon.com)

**Q: Can i use it to detect H2S on water well?**
A: Indeed you can! But you will need the pump to draw the sample and have a long tube down to the well.

**Q: How big**
A: The product is handheld with reasonable dimensions of 110*60*30mm, 134grams

**Q: My charger for this broke, what type of charger do I need to buy for this**
A: You can use any USB charger, like your phone USB port. Or simply email us and we can send you a replacement immediately. Thank you.

## Frequently Bought Together

- H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S |
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**Shop now:** [https://www.desertcart.jp/products/84564508-fd-90a-h2](https://www.desertcart.jp/products/84564508-fd-90a-h2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-19*