---
product_id: 154778224
title: "testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe"
brand: "testo"
price: "₨54046"
currency: SCR
in_stock: true
reviews_count: 9
category: "Testo"
url: https://www.desertcart.sc/products/154778224-testo-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester
store_origin: SC
region: Seychelles
---

# 6-year sensor lifespan 5.0" HD smart touch display Measures flue gas & draft precisely testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe

**Brand:** testo
**Price:** ₨54046
**Availability:** ✅ In Stock

## Summary

> 🔥 Master Combustion Analysis with Smart Precision 📊

## Quick Answers

- **What is this?** testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe by testo
- **How much does it cost?** ₨54046 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/154778224-testo-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester)

## Best For

- testo enthusiasts

## Why This Product

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

## Key Features

- • **Hands-Free Operation:** Strong rear magnets enable secure, hands-free measurements—work smarter, not harder.
- • **Complete Professional Kit:** Includes spare probes, dirt filters, rugged hardshell case, and easyHeat software for seamless reporting and data management.
- • **Precision at Your Fingertips:** Instantly measure CO, O2, temperature, draft, and differential pressure with one sleek device.
- • **Intuitive Smart Touch Display:** Navigate complex data effortlessly on a vibrant 5.0" HD IPS touchscreen with a clear, structured menu.
- • **Sensor Longevity That Outlasts the Competition:** Equipped with ultra-sensitive CO and O2 sensors boasting up to 6 years of reliable use.

## Overview

The testo 300 Combustion Analyzer HVAC Kit is a professional-grade tool designed for residential heating system diagnostics. It delivers precise measurements of carbon monoxide, oxygen levels, temperature, draft, and differential pressure using long-lasting sensors with up to 6 years of life. Featuring a large 5.0" HD touchscreen and hands-free operation via strong magnets, it streamlines complex data collection and reporting. The kit comes complete with spare probes, filters, a rugged case, and easyHeat software, making it an indispensable asset for HVAC professionals seeking accuracy and efficiency.

## Description

Testo 300 kit Residential - Efficient and precise combustion measurement The combustion and emissions analyzer by testo offers dependable measurements of carbon monoxide, flue gas 02, COlow, NO, NOlow and draft, as well as temperature and differential pressure of heating systems. With its high-quality sensors and rugged housing, the testo 300 provides reliable and consistent performance. Store and see all data on one instrument - the large HD display with smart touch offers an extremely intuitive operation. Quickly view reports and send data via e-mail for up to 1,000,000 measuring values. Technical Data: Dimensions: 9.6 (including probe connection) x 3.9 x 2.3 (LxWxH) / 244 (including probe connection) x 98 x 59 (LxWxH) Weight: approximately 28.2 oz. / approximately 800 g Product color: black/orange Display type: 5.0"" touch display, HD 1280*720 pixels, IPS (160 k) Battery life: 10 hours Scope of Delivery: testo 300 combustion analyzer with 02 and CO sensor, power adapter, mains unit, basic flue gas probe, spare dirt filters, hardshell transport case and easyHeat PC software (free download)

Review: Great analyzer - Phenomenal product. I’ve had a few problems though, like setting up customers and addresses & not worth the time. Then setting up an email that would allow access was extremely difficult, once it’s set up though, it is very nice and easy to use.
Review: MUY BUENA CALIDAD DEL PRODUCTO

## Features

- Efficient: The combustion analyzer hvac reliably measures the carbon monoxide and O2 level of furnaces and boilers, as well as temperature, draft and differential pressure
- Durable: The combustion analyzer and co meter is equipped with an extremely sensitive CO and O2 sensor with up to 6 years of life expectancy and a measuring range up to 4,000 ppm
- Easy application: Start measuring on your combustion leak tester from standby mode at the touch of a button. Extra strong magnets at the back of the meter enable a hands free and secure measuring operation
- Intuitive: Thanks to the large HD smart touch display of the co meter with a clearly structured measurement menu, the flue gas detector offers all measurements at one glance
- Complete Set: The combustion gas leak detector set includes long life O2 and CO sensor, mains unit, basic flue gas probe, spare dirt filters, rugged hardshell case and easyHeat software

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W5WZVW9 |
| Alarm | Audible |
| Batteries | 1 AA batteries required. (included) |
| Best Sellers Rank | #122,217 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #168 in Indoor Air Quality Meters |
| Brand | Testo |
| Color | Black |
| Date First Available | August 8, 2019 |
| Global Trade Identification Number | 04029547021879 |
| Item Weight | 1 pounds |
| Item model number | B07W5WZVW9 |
| Manufacturer | Testo |
| Number of Items | 1 |
| Operating Humidity | 95 percent |
| Power Source | Battery Powered |
| Product Dimensions | 30"D x 8"W x 6"H |
| Style | Standard Set |

## Product Details

- **Alarm:** Audible
- **Brand:** Testo
- **Color:** Black
- **Global Trade Identification Number:** 04029547021879
- **Item Weight:** 1 Pounds
- **Number of Items:** 1
- **Operating Humidity:** 95 percent
- **Power Source:** Battery Powered
- **Product Dimensions:** 30"D x 8"W x 6"H
- **Style:** Standard Set

## Images

![testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe - Image 1](https://m.media-amazon.com/images/I/711suW1EWjL.jpg)
![testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe - Image 2](https://m.media-amazon.com/images/I/41REaaJKKBL.jpg)
![testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe - Image 3](https://m.media-amazon.com/images/I/51LO4rr+9nL.jpg)
![testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe - Image 4](https://m.media-amazon.com/images/I/51nEpbX7MIL.jpg)
![testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe - Image 5](https://m.media-amazon.com/images/I/51h5OTwu9BL.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great analyzer
*by C***N on November 26, 2021*

Phenomenal product. I’ve had a few problems though, like setting up customers and addresses & not worth the time. Then setting up an email that would allow access was extremely difficult, once it’s set up though, it is very nice and easy to use.

### ⭐⭐⭐⭐⭐ Review
*by D***Z on October 5, 2022*

MUY BUENA CALIDAD DEL PRODUCTO

### ⭐⭐⭐ Did it’s job then failed
*by H***D on October 25, 2022*

Worked for a little bit then failed Had to return. Return took two weeks to go back on my card.

## Frequently Bought Together

- testo 300 I Residential and Commercial Combustion Analyzer Kit with optional bluetooth printer I CO Meter for flue gas, draft, differential pressure and ambient CO levels of heating systems
- testo 510 Digital Manometer I Dual-Port Differential Pressure Meter for air Conditioning Systems and Ventilation ducts

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-04*