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

Name: 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
SKU: awhd-us-b07w5wzvw9
Price: 747.71 USD
Availability: InStock

Brand: Testo

Condition: Used

$747⁷¹

$1,548⁶²

-52% Save $800⁹¹

Updated: Yesterday

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Description

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

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Product Details

SKU:: awhd-us-b07w5wzvw9
Model:: B07W5WZVW9
Country:: US
ASIN:: B07W5WZVW9
GTIN:: 04029547021879

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $801 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Testo products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.