---
product_id: 84564508
title: "H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S |"
brand: "forensics detectors fd"
price: "KSh33794"
currency: KES
in_stock: true
reviews_count: 9
category: "Forensics Detectors Fd"
url: https://www.desertcart.co.ke/products/84564508-h2s-monitor-by-forensics-usa-nist-calibration-and-certificate-dust
store_origin: KE
region: Kenya
---

# Multi-mode alarms with timestamp logging 0.1ppm ultra-precise resolution ≤±5% sensor accuracy H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S |

**Brand:** forensics detectors fd
**Price:** KSh33794
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of danger with precision you can trust!

## Quick Answers

- **What is this?** H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S | by forensics detectors fd
- **How much does it cost?** KSh33794 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/84564508-h2s-monitor-by-forensics-usa-nist-calibration-and-certificate-dust)

## 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

- • **Precision that Protects:** Experience pinpoint H2S detection from 0 to 100ppm with 0.1ppm resolution, calibrated to USA NIST standards for unmatched reliability.
- • **Built to Brave the Elements:** Shockproof, waterproof, dustproof, and explosion-proof design with a convenient belt clip—ready for the toughest environments.
- • **Rapid Response, Real Safety:** Electrochemical sensor reacts in under 30 seconds, ensuring you’re alerted before danger escalates.
- • **Trusted Quality, Guaranteed:** Backed by a 1-year warranty, USA-based calibration, and rigorous product testing for peace of mind on every job.
- • **Custom Alerts, Zero Compromise:** Adjust audio, visual, and vibration alarms with digital timestamp logging to stay ahead of hazardous levels anytime, anywhere.

## Overview

The FD-90A-H2S is a professional-grade hydrogen sulfide meter featuring ultra-precise 0.1ppm resolution and USA NIST calibration. Its electrochemical sensor delivers fast response times (<30s) with ±5% accuracy. Equipped with customizable audio, visual, and vibration alarms plus digital timestamp logging, it ensures real-time hazard awareness. Built rugged with shockproof, waterproof, dustproof, and explosion-proof housing, it’s designed for demanding industrial environments. Includes rechargeable lithium-ion battery, belt clip, and a 1-year limited warranty, making it a reliable choice for safety-conscious professionals.

## 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

Review: Great H2S Monitor - Very impressed with the performance and accuracy of this monitor. One of the few at this price level that gives real time ppm readings along with alert level notifications. Only downside, it's a little bulky, but the performance offsets that minor issue.
Review: Battery died in first one, but it was replaced quickly with minimal fuss by the manufacturer. - Rechargeable battery went dead (would not charge) just after the one year warranty expired. ***UPDATE 10/11/19*** I contacted the company I ordered from and told them what happened and they replaced the unit even though it was a bit out of warranty. The new one is working great. I am happy.

## 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 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #546,711 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #400 in Gas Detectors & Alarms |
| Brand | FORENSICS DETECTORS FD |
| Color | Black, Yellow |
| Customer Reviews | 3.9 3.9 out of 5 stars (76) |
| Date First Available | August 13, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.6 ounces |
| Item model number | FD-90A-H2S |
| Manufacturer | FORENSICS |
| Material | ABS |
| Operating Humidity | 95 percent |
| Part Number | FD-90A-H2S |
| Power Source | Battery Powered |
| Product Dimensions | 1.7"D x 2.3"W x 4.3"H |
| Sensor Type | Electrochemical |
| Style | modern |

## Product Details

- **Alarm:** Audible, Visual
- **Brand:** FORENSICS DETECTORS FD
- **Color:** Black, Yellow
- **Item Weight:** 130 Grams
- **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

![H2S Monitor by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-100ppm H2S | - Image 1](https://m.media-amazon.com/images/I/71ePiuakrML.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great H2S Monitor
*by C***E on September 3, 2020*

Very impressed with the performance and accuracy of this monitor. One of the few at this price level that gives real time ppm readings along with alert level notifications. Only downside, it's a little bulky, but the performance offsets that minor issue.

### ⭐⭐⭐⭐ Battery died in first one, but it was replaced quickly with minimal fuss by the manufacturer.
*by K***S on October 4, 2019*

Rechargeable battery went dead (would not charge) just after the one year warranty expired. ***UPDATE 10/11/19*** I contacted the company I ordered from and told them what happened and they replaced the unit even though it was a bit out of warranty. The new one is working great. I am happy.

### ⭐⭐⭐⭐⭐ Works
*by C***Y on March 15, 2020*

Came ready to use. So glad it worked my husband was in a poisonous gas area and unit went off. I like it is rechargable.

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-16*