---
product_id: 272289017
title: "FORENSICS DETECTORS FD Residential Combustion Analyzer by | Flue Gas Analyzer | CO, O2, COAF & EA | Water Trap, Particle & NOx filters | Color Display, Graphing, Data Logging | USA NIST Calibration |"
brand: "forensics detectors fd"
price: "7278 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Forensics Detectors Fd"
url: https://www.desertcart.dk/products/272289017-forensics-detectors-fd-residential-combustion-analyzer-by-flue-gas-analyzer
store_origin: DK
region: Denmark
---

# Color display & graphing High-precision O2 & CO sensors Waterproof, dust & explosion-proof FORENSICS DETECTORS FD Residential Combustion Analyzer by | Flue Gas Analyzer | CO, O2, COAF & EA | Water Trap, Particle & NOx filters | Color Display, Graphing, Data Logging | USA NIST Calibration |

**Brand:** forensics detectors fd
**Price:** 7278 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Master combustion safety with precision and style! 🔥

## Quick Answers

- **What is this?** FORENSICS DETECTORS FD Residential Combustion Analyzer by | Flue Gas Analyzer | CO, O2, COAF & EA | Water Trap, Particle & NOx filters | Color Display, Graphing, Data Logging | USA NIST Calibration | by forensics detectors fd
- **How much does it cost?** 7278 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/272289017-forensics-detectors-fd-residential-combustion-analyzer-by-flue-gas-analyzer)

## 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 ABS body with anti-slip grip and strong magnet mount for hands-free, durable use in any environment.
- • **Ready Out of the Box:** Includes water trap, particle & NOx filters, hardcase, and USB charging for seamless professional deployment.
- • **Precision You Can Trust:** Factory calibrated with USA NIST certification ensures ≤±5% detection error for reliable combustion analysis.
- • **Comprehensive Gas Detection:** Measures CO, O2, COAF, and Excess Air with advanced filters to minimize cross-sensitivity errors.
- • **Visual Insights at a Glance:** Vibrant color screen with real-time graphing and alarm logging keeps you ahead of potential hazards.

## Overview

The FORENSICS DETECTORS FD Residential Combustion Analyzer is a compact, battery-powered flue gas analyzer designed for HVAC pros and technicians. Featuring high-accuracy electrochemical sensors for CO and O2, it calculates CO air-free and excess air levels with ≤±5% error. Its rugged, waterproof design includes a color display with graphing and alarm logging, plus essential filters and a magnetic mount. Factory calibrated in the USA with NIST traceability, it delivers reliable, real-time combustion and ambient air quality analysis for residential applications.

## Description

Product description Innovative Combustion Flue Gas Analyzers Forensics Detectors offers innovative combustion flue gas analyzers for Heating, Ventilation, and Air Conditioning (HVAC) specialists, boiler technicians, plumbers, and homeowners. A combustion analysis is commonly performed on appliances such as boilers, heaters, ovens, pool heaters, and furnaces. Combustion Analyzers and Flue Gas Analyzers The Forensics Detectors Series of Combustion Analyzers detect carbon monoxide (CO) and oxygen (O2) and calculate COAF and EA. These have been made for Heating, Ventilation, and Air Conditioning (HVAC) specialists, boiler technicians, contractors, and plumbers. A combustion analysis is commonly performed on appliances such as boilers, heaters, ovens, pool heaters, and furnaces. Test results provide gas levels and insight into safe and efficient appliance operation. Our combustion analyzers all display CO, O2, COAF (CO air-free), and EA (Excess Air %). Do Combustion Analyzers Indicate Which Gas Is Being Detected? Yes, they do. Since there is a gas sensor array ranging from 1 to 4 sensors, the analyzer presents the corresponding gas levels. Sometimes detectors may calculate the gas value instead of directly measuring it. For example, by measuring oxygen, a combustion analyzer may "infer" the CO2 levels. Check to make sure which units are actually being "measured" and which are being "calculated." EU NPL Traceable Gas Source Have the highest confidence in your gas detection accuracy. Possible only with best calibration practices to EU NPL Traceable Sources. Calibration qualified in the Forensics Detectors laboratory. Included Niobium Magnetic Mount & Electronic Pump User Manual EU Calibration Certificate Stainless Steel Probe, Hose Assembly 3 ft high-temperature Silicone Tubing Water Trap & NOx Filter Sensor Cap & Sensor Cap mounting Screw USB Charging Cable & USB Charger Technical Specifications

Review: Good purchase - Works as advertised. Has all the options I needed to check the furnace efficiency and exhaust output. Tool is very simple to set up and use . Definitely worth the money .
Review: Genau wie beschreiben - Hilfreiches Messgerät. Überrascht hat mich, dass ich eine Nachverrechnung vom Zoll bzw. von der Spedition erhalten habe.

## Features

- 🕵️ TRUST: ** 1 year limited warranty ** Arrives with calibration and QA certificate ** 100% product test and verification in the USA **
- 🌇 FEATURES: Color screen, graphing and alarm logging. Includes hardcase, water trap, particle filter and NOx filter to reduce cross sensitivity errors.
- 🔬 SENSORS: High quality sensors with Oxygen (O2) and Carbon Monoxide (CO). Calculates COAF (CO air free) and excess air (EA) for combustion analysis. Comes factory calibrated. Detection error better than ≤±5% F.S. and response time: T<60s. Zero and span calibration options for user full control.
- 💪 STRONG: Robust design with ABS and Anti-slip grip rubber. Comes with strong magnet for appliance mounting. Waterproof, dust-proof and explosion-proof.
- ⚛️ RESIDENTIAL: For residential combustion analysis & ambient air quality analysis or probe sampling / continuous sampling in confined or toxic spaces. USA NIST Calibration.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QNFZ3X8 |
| Alarm | Audible |
| Brand | FORENSICS DETECTORS FD |
| Color | yellow |
| Colour | yellow |
| Customer Reviews | 4.0 out of 5 stars 16 Reviews |
| Item Weight | 499 g |
| Item weight | 499 g |
| Manufacturer | Forensics Detectors |
| Mfr Part Number | FD-4S-FLUE |
| Model Number | FD-4S-FLUE |
| Operating Humidity | 95 percent |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product Style | Compact |
| Sensor Type | Electrochemical |
| Style | Compact |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** FORENSICS DETECTORS FD
- **Colour:** yellow
- **Item weight:** 1.1 Pounds
- **Power source:** Battery Powered
- **Style:** Compact

## Images

![FORENSICS DETECTORS FD Residential Combustion Analyzer by | Flue Gas Analyzer | CO, O2, COAF & EA | Water Trap, Particle & NOx filters | Color Display, Graphing, Data Logging | USA NIST Calibration | - Image 1](https://m.media-amazon.com/images/I/813xtvYZtgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good purchase
*by S***E on 11 January 2026*

Works as advertised. Has all the options I needed to check the furnace efficiency and exhaust output. Tool is very simple to set up and use . Definitely worth the money .

### ⭐⭐⭐⭐ Genau wie beschreiben
*by G***R on 2 January 2022*

Hilfreiches Messgerät. Überrascht hat mich, dass ich eine Nachverrechnung vom Zoll bzw. von der Spedition erhalten habe.

### ⭐⭐⭐⭐⭐ As designed
*by B***T on 3 December 2025*

Works as advertised. Simple to operate gives all the necessary information needed to check burner function

## Frequently Bought Together

- Residential Combustion Analyzer by Forensics | Flue Gas Analyzer | CO, O2, COAF & EA | Water Trap, Particle & NOx Filters | Color Display, Graphing, Data Logging | USA NIST Calibration |
- Klein Tools ET120 Combustible Gas Leak Detector, Black and Orange, One Size

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**Shop now:** [https://www.desertcart.dk/products/272289017-forensics-detectors-fd-residential-combustion-analyzer-by-flue-gas-analyzer](https://www.desertcart.dk/products/272289017-forensics-detectors-fd-residential-combustion-analyzer-by-flue-gas-analyzer)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-08-01*