testo 300 I Residential and Commercial Combustion Analyzer Kit with Bluetooth printer I CO Meter for flue gas, draft, differential pressure and ambient CO levels of heating systems








Key features
- •Efficient: The combustion testing tool reliably measures the carbon monoxide and O2 level of furnaces and boilers, as well as temperature, draft and differential pressure
- •Durable: The flue gas 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 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 with a clearly structured measurement menu, the flue gas detector offers all measurements at one glance
- •Complete Set: Includes long life O2 and CO sensor, retrofittable NO Sensor, probes and filters, rugged hardshell case, easyHeat software, wireless printer and spare thermal paper
testo 300 I Residential and Commercial Combustion Analyzer Kit with Bluetooth printer I CO Meter for flue gas, draft, differential pressure and ambient CO levels of heating systems
List Price: $2463.55$2217.20DEALYou Save: $246.35 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 25, 2026In Stock (3)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection





