---
product_id: 61432537
title: "FD-90A-O2"
brand: "forensics detectors fd"
price: "$1296644"
currency: COP
in_stock: null
reviews_count: 8
category: "Forensics Detectors Fd"
url: https://www.desertcart.co/products/61432537-fd-90a-o2
store_origin: CO
region: Colombia
---

# 0.1% O2 resolution Response <30s Shock, water & explosion proof FD-90A-O2

**Brand:** forensics detectors fd
**Price:** $1296644
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Stay ahead of the curve with precision oxygen detection that works as hard as you do!

## Quick Answers

- **What is this?** FD-90A-O2 by forensics detectors fd
- **How much does it cost?** $1296644 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/61432537-fd-90a-o2)

## 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 for the Field:** Rugged, shockproof, waterproof, dustproof, and explosion-proof design with convenient belt clip.
- • **Certified Reliability:** Comes factory calibrated with QA certificate and backed by a 1-year limited warranty.
- • **Rapid Response Alerts:** Electrochemical sensor reacts in under 30 seconds to keep you ahead of danger.
- • **Precision You Can Trust:** USA NIST calibrated with 0.1% oxygen resolution for pinpoint accuracy.
- • **Multi-Modal Alarm System:** Customizable sound, light, and vibration alarms ensure you never miss critical O2 levels.

## Overview

The FD-90A-O2 is a professional-grade oxygen gas detector featuring USA NIST calibration, 0-30% measurement range with 0.1% resolution, and a fast electrochemical sensor response under 30 seconds. Designed for demanding environments, it offers shock, water, dust, and explosion resistance, plus customizable multi-modal alarms and USB rechargeable battery. Certified and quality guaranteed, it’s the trusted choice for accurate, reliable oxygen monitoring.

## Description

Oxygen Detector by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-30% O2 |: desertcart.com: Tools & Home Improvement

Review: The meter is a good value for cost. - This O2 meter came certified /calibrated. I performed a bump test and confirmed the accuracy of the manufacturer's calibration. The meter is easy to operate and recharge the battery. It is surprisingly durable in the field for such an inexpensive meter. We have been using it for 2 years and have had no issues.
Review: Accurate Oxygen readout - This item is accurate and easy to use. Gives Oxygen level to a tenth of a percent.

## Features

- 🔬 ACCURATE: Professional and Accurate OXYGEN (O2) gas detector, 0-30.0% with 0.1% resolution. USA NIST Calibration.
- 🌷 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 |
|---------------|-------|
| Brand | FORENSICS DETECTORS FD |
| Color | Yellow |
| Item Weight | 8 ounces |
| Power Source | Battery Powered |
| Product Dimensions | 1.7"D x 2.3"W x 4.3"H |
| Style | modern |

## Product Details

- **Alarm:** Audible, Vibration, Visual
- **Brand:** FORENSICS DETECTORS FD
- **Color:** Yellow
- **Item Weight:** 0.5 Pounds
- **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-O2 - Image 1](https://m.media-amazon.com/images/I/71Y3bcZmmHL.jpg)
![FD-90A-O2 - Image 2](https://m.media-amazon.com/images/I/71jOT2IJ2LL.jpg)
![FD-90A-O2 - Image 3](https://m.media-amazon.com/images/I/71jcV3AHBuL.jpg)
![FD-90A-O2 - Image 4](https://m.media-amazon.com/images/I/81L0VlXfLPL.jpg)
![FD-90A-O2 - Image 5](https://m.media-amazon.com/images/I/81n3zpfe3aL.jpg)

## Questions & Answers

**Q: Can this be used to analyze O2 in a scuba cylinder?**
A: The detector reads up to 30% O2. If your cylinder contains compressed air, then YES. If it contains enriched O2 higher then 30%, then NO.

**Q: Does this measure carbon dioxide levels as ppm?  I've read that 250-400ppm is outdoor air so how does this measure that?**
A: It measures oxygen, not carbon dioxide.

**Q: Does this come with a charger or only a usb cable?**
A: Only USB cable. If you want a charger also, we would be happy to send you one for free. (Most customers have USB chargers lying around). Please email us forensicsdetectors@gmail.com after your purchase.

**Q: What will this meter display when Oxygen concentration rises above 30%?  And can it be user calibrated?**
A: If above 30% it just reads 30%.
Yes, the user can calibrate it. It is very easy we have Youtube videos on how to do this. Thank you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The meter is a good value for cost.
*by J***Y on May 8, 2025*

This O2 meter came certified /calibrated. I performed a bump test and confirmed the accuracy of the manufacturer's calibration. The meter is easy to operate and recharge the battery. It is surprisingly durable in the field for such an inexpensive meter. We have been using it for 2 years and have had no issues.

### ⭐⭐⭐⭐⭐ Accurate Oxygen readout
*by T***. on November 19, 2024*

This item is accurate and easy to use. Gives Oxygen level to a tenth of a percent.

### ⭐⭐⭐⭐⭐ As advertised.
*by S***H on March 17, 2023*

Wanted to test foul air in a nursing home where a relative is staying. It proved my point, causing a discussion with management. Easy to use with well implemented features. Recommended.

## Frequently Bought Together

- Oxygen Detector by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-30% O2 |
- 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 Colombia*
*Store origin: CO*
*Last updated: 2026-01-23*