--- product_id: 154778224 title: "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: "R59322" currency: ZAR in_stock: true reviews_count: 5 url: https://www.desertcart.co.za/products/154778224-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester-flue store_origin: ZA region: South Africa --- # 5.0" HD touch display 10-hour battery life 6-year sensor lifespan 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:** R59322 **Availability:** ✅ In Stock ## Summary > 🔥 Master combustion diagnostics with precision and ease! 🔥 ## Quick Answers - **What is this?** 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?** R59322 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/154778224-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester-flue) ## 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 - • **All-in-One Rugged Kit:** Includes spare probes, dirt filters, hard case, and easyHeat software for total jobsite readiness. - • **Data-Driven Decisions:** Store up to 1,000,000 readings and export reports via email—seamless workflow integration. - • **Hands-Free Efficiency:** Strong rear magnets enable secure, hands-free operation for multitasking pros. - • **Long-Lasting Sensor Tech:** Up to 6 years of reliable CO and O2 sensor performance—less downtime, more confidence. - • **Precision at Your Fingertips:** Instantly measure CO, O2, temperature, draft, and pressure with one intuitive device. ## Overview The testo 300 Combustion Analyzer HVAC Kit is a professional-grade tool designed for residential heating system diagnostics. Featuring a 5.0" HD touch display, ultra-sensitive CO and O2 sensors with up to 6 years lifespan, and a 10-hour battery life, it delivers precise measurements of flue gas, draft, differential pressure, and ambient CO levels. The kit includes spare probes, dirt filters, a rugged carrying case, and easyHeat software, enabling efficient, hands-free operation and comprehensive data management for HVAC professionals. ## 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) ## 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 | |---------------|-------| | Alarm | Audible | | Asin | B07W5WZVW9 | | Best Sellers Rank | #159,267 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #203 in Indoor Air Quality Meters | | Brand | Testo | | Built In Media | logic-analyzers | | Color | Black | | Customer Reviews | 4.2 4.2 out of 5 stars (23) 4.2 out of 5 stars | | Global Trade Identification Number | 04029547021879 | | Item Dimensions D X W X H | 30"D x 8"W x 6"H | | Item Weight | 16 ounces | | Manufacturer | Testo | | Manufacturer Warranty Description | 2 years | | Mfr Part Number | 0564 3002 82 | | Model Number | B07W5WZVW9 | | Number Of Items | 1 | | Operating Humidity | 95 percent | | Power Source | Battery Powered | | Product Style | Standard Set | | Unit Count | 1 Count | ## Product Details - **Alarm:** Audible - **Brand:** Testo - **Color:** Black - **Global Trade Identification Number:** 04029547021879 - **Item Weight:** 16 ounces - **Operating Humidity:** 95 percent - **Power Source:** Battery Powered - **Product Dimensions:** 30"D x 8"W x 6"H - **Style:** Standard Set - **Unit Count:** 1 Count ## Images ![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) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great analyzer *by on Reviewed in the United States 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. ### ⭐ Seller-not recommended but tool by they self-nice instrument. *by on Reviewed in the United States March 15, 2023* I'm plumber/HVAC technician and use TESTO instruments for last 20+ years(combustion analyzer, HVAC pressure gages, temperature probe), I like this brand and never have problems with, but this tool make mi not happy-its not works from 1st time(see picture) also in my kit is missed testo Bluetooth® Connector to allow testo Smart Probe connectivity to testo 300 Combustion Analyzers (nice option for HVAC technicians). I return my tool in next day and ordered another from SupplyHouse-this one works perfect.(at instrument from SupplyHouse Bluetooth® Connector included in kit) ### ⭐⭐⭐ Should Be Recalled *by on Reviewed in the United States November 2, 2023* Firstly it reads 80ppm low on CO when subjected to cal gas. The device shuts itself down, and it requires about 40 minutes to restart. The bluetooth only works with a phone app; it won't work with testo easyheat. The usb is both the charging port and the computer interface, but the usb port doesn't provide enough current to charge the testo, and when the battery dies, it takes 40 minutes to charge enough to start up.But the worst thing is that it locks up. And when it does you have two choices: take the battery out or wait until the battery runs out. Taking the battery out is not trivial.If you want a Testo, buy a 330. Don't bother with the 300. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/154778224-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester-flue](https://www.desertcart.co.za/products/154778224-300-combustion-analyzer-hvac-kit-residential-combustion-leak-tester-flue) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-29*