Sauermann Flue Gas Analyser Probe – 180mm (27532) The Sauermann 180mm Flue Gas Analyser Probe (Model 27532) is a sampling probe for use with Sauermann's Si-CA 030, Si-CA 130 and Si-CA 230 flue gas analysers, giving temperature and combustion gas readings for boilers, burners and heating appliances. It comes with a 2m dual hose with a built-in water trap and adjustable fixing cone for clean sampling and easy installation in the flue. It measures flue gas temperatures across a wide range up to +800°C, suited to heating engineers and service professionals working on domestic and light commercial systems. Key Features & Benefits High-Temperature Measurement: Measures flue gas temperatures from -20°C to +800°C