{"product_id":"testo-0390-0118-replacement-co-sensor-0-4000-ppm","title":"Testo 0390 0118 Replacement Co Sensor 0-4000 Ppm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TESTO 0390 0118 is a replacement carbon monoxide (CO) measuring cell designed for use in combustion and flue gas analysis equipment. This sensor operates without hydrogen (H2) compensation, meaning it measures CO concentration directly without correcting for cross-sensitivity to hydrogen gas. It covers a measurement range of 0 to 4000 parts per million (ppm), making it suitable for a wide range of combustion efficiency and safety testing applications. Licensed HVAC technicians and combustion analysts install this cell as a consumable replacement when the existing sensor reaches end of service life.\u003c\/p\u003e\n\u003cp\u003eThis CO sensor is intended for use in the Testo 330-1 LL flue gas analyzer. Flue gas analyzers are used during commissioning, seasonal servicing, and compliance checks on gas-fired furnaces, boilers, water heaters, and other combustion appliances in residential and light commercial settings. The sensor plugs into the analyzer to restore accurate CO measurement capability after the original cell degrades.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasurement range of 0 to 4000 ppm CO for broad combustion testing coverage\u003c\/li\u003e\n  \u003cli\u003eNo H2 compensation — straightforward CO detection without hydrogen cross-sensitivity correction\u003c\/li\u003e\n  \u003cli\u003eOEM-style replacement cell engineered for the Testo 330-1 LL analyzer platform\u003c\/li\u003e\n  \u003cli\u003eRestores full CO measurement function when the installed sensor reaches end of life\u003c\/li\u003e\n  \u003cli\u003eElectrochemical cell design standard to portable flue gas analyzer applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct replacement CO measuring cell for the Testo 330-1 LL flue gas analyzer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCO sensor replacement in flue gas analyzers is typically performed by HVAC technicians or combustion specialists familiar with the analyzer's service procedures. Power down and fully purge the analyzer before removing the old cell, following the manufacturer's sensor replacement guide. Handle the electrochemical cell carefully to avoid physical damage or contamination of the sensing element. Consult the analyzer's service documentation for proper seating and connection confirmation before returning the unit to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0 to 4000 ppm CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eH2 Compensation\u003c\/strong\u003e: None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Flue gas analysis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TESTO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 0390 0118\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TESTO","offers":[{"title":"Default Title","offer_id":51468009963826,"sku":"0390 0118","price":737.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313946123.png?v=1783913152","url":"https:\/\/voomisupply.com\/products\/testo-0390-0118-replacement-co-sensor-0-4000-ppm","provider":"Voomi Supply","version":"1.0","type":"link"}