{"product_id":"testo-co-replacement-sensor-without-h2-compensation-0390-0115","title":"Testo CO Replacement Sensor without H2 Compensation","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Testo CO Replacement Sensor is a direct swap for your compatible Testo flue gas analyser, keeping your combustion checks accurate and your reports reliable. When you're out on a job, a faulty sensor can throw off your readings, making it impossible to correctly diagnose a system.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eHaving a spare on hand or replacing a tired sensor is just good practice, especially in the Aussie climate where analysers work hard in varying conditions.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eBest For\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eHVAC service technicians\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eCombustion analysis specialists\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAnyone maintaining Testo 330-1 or 327-2 flue gas analysers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eCompatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis CO replacement sensor is specifically designed for use with the Testo 330-1 and Testo 327-2 flue gas analysers. If you're running a different model, check fittings and specs before ordering.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eFeatures\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Engineered as a genuine spare part for seamless integration into compatible Testo analysers.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eAccurate CO Measurement:\u003c\/strong\u003e Restores the analyser's ability to provide precise carbon monoxide readings for safe and efficient combustion tuning.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eNon-H2 Compensated:\u003c\/strong\u003e Ideal for specific applications where hydrogen interference is not a concern or where an uncompensated reading is preferred.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eManufacturer Standard:\u003c\/strong\u003e Built to Testo's specifications for reliability and performance in demanding trade environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eTesto 0390 0115 CO Replacement Sensor without H2 Compensation\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eUsing It on the Job\u003c\/h2\u003e\n\u003col style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eBefore replacement, always power down your Testo analyser and refer to the analyser's user manual for specific sensor replacement instructions.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eCarefully remove the old CO sensor following the manufacturer's guide, noting its orientation.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eInstall the new 0390 0115 sensor, ensuring it's seated correctly and any electrical contacts are clean and firm.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePower up your analyser and initiate a fresh calibration sequence. This is critical for accurate readings after any sensor change.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePerform a test measurement to verify correct operation and sensor response.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eLimitations \u0026amp; Safety Notes\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis sensor is specified as 'without H2 compensation'. Be aware of this if your application involves fuels that produce hydrogen, which could interfere with CO readings.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eOnly use this sensor with the compatible Testo 330-1 and 327-2 flue gas analysers.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAlways follow your Testo analyser's user manual for safe operation, maintenance, and sensor replacement procedures.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eRegular calibration of your analyser is essential to ensure measurement accuracy and compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote style=\"border-left: 4px solid #007acc; background-color: #f9f9f9; font-style: italic; padding: 15px; margin: 20px 0;\"\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eTradie Pro Tip: After fitting any new sensor, always perform a full fresh air purge and calibration. Don't skip this step; it's the only way to ensure your readings are spot-on for the next job.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003ePair With\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair this sensor with your Testo flue gas analyser and check out our range of analyser accessories and calibration services to keep your gear running in top condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Automated FAQ Schema --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which Testo analysers is this CO sensor compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This Testo 0390 0115 CO replacement sensor is specifically designed for direct use with the Testo 330-1 and Testo 327-2 flue gas analysers. It ensures seamless integration and accurate measurement functionality for these models.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does 'without H2 compensation' mean for my measurements?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 'without H2 compensation' feature means this sensor does not account for hydrogen (H2) interference in the gas sample. This is important for applications where H2 is not present, or where its influence on CO readings is understood and managed through specific testing procedures.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is calibration required after replacing the sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, absolutely. It is critical to perform a full fresh air purge and calibration sequence on your Testo flue gas analyser immediately after installing a new 0390 0115 CO sensor. This ensures the analyser provides accurate and reliable readings for combustion analysis.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785443770427,"sku":"0390 0115","price":803.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/xtesto-0390-0115-co-replacement-sensor.jpg.pagespeed.ic.vuGieGYgCW.jpg?v=1784010770","url":"https:\/\/www.hvacshop.com.au\/products\/testo-co-replacement-sensor-without-h2-compensation-0390-0115","provider":"HVAC Supply Shop","version":"1.0","type":"link"}