{"product_id":"testo-o2-replacement-sensor-0390-0292","title":"Testo O2 Replacement Sensor","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Testo 0390 0292 O2 Replacement Sensor is a direct fit for your Testo 330 or 327-2 Combustion Analyser, ensuring your flue gas readings stay accurate and reliable. It's crucial for maintaining the performance of your combustion analyser, helping you diagnose and tune systems correctly.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eWhen you're out on a job, a dodgy O2 sensor can throw off your combustion readings, costing you time and rework. This genuine replacement ensures your Testo analyser stays calibrated, giving you confidence in every report you hand over to the client.\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 and maintenance teams\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eGasfitters and plumbers performing combustion analysis\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAnyone using a Testo 330 or Testo 327-2 Combustion Analyser\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 O2 replacement sensor is specifically designed for and compatible with the Testo 330 Combustion Analyser and the Testo 327-2 Combustion Analyser. 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\u003eGenuine Testo Part:\u003c\/strong\u003e Ensures perfect fit and reliable performance, matching original factory specifications.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eAccurate O2 Readings:\u003c\/strong\u003e Critical for precise combustion analysis, helping to optimise efficiency and verify safety.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Engineered for easy, straightforward swap-out in compatible Testo analysers.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eMaintains Analyser Performance:\u003c\/strong\u003e Replacing a worn sensor restores your unit's ability to measure oxygen levels correctly.\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;\"\u003e1 x Testo 0390 0292 O2 Replacement Sensor\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;\"\u003eIsolate and power down your Testo 330 or 327-2 analyser before attempting any sensor replacement.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eRefer to your specific analyser's operating manual for the exact procedure to access and replace the O2 sensor.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eCarefully remove the old O2 sensor, making note of its orientation and any associated connections.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eInstall the new Testo 0390 0292 O2 sensor, ensuring it seats correctly and connections are secure.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePower up the analyser and perform any recommended fresh air calibration or setup procedures as per the manual.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAlways follow manufacturer guidelines for proper installation and re-calibration to ensure accurate and safe operation.\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 only compatible with Testo 330 and Testo 327-2 Combustion Analyzers.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIncorrect installation can lead to inaccurate combustion readings, impacting safety and efficiency assessments.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAlways refer to your analyser's manual for specific installation instructions, calibration procedures, and safety guidelines.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eEnsure the analyser is powered off and cooled down before attempting any sensor replacement.\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;\"\u003e\u003cstrong\u003eTradie Pro Tip:\u003c\/strong\u003e Don't wait for your analyser to start giving you dodgy readings. Keep a spare O2 sensor on hand, especially for those busy periods, so you're not caught out on a job and can keep delivering accurate results.\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 with a Testo 330 Combustion Analyser or a Testo 327-2 Combustion Analyser, and ensure you have any necessary flue gas probes and filters to keep your system running optimally.\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 does this O2 sensor fit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This replacement sensor, model 0390 0292, is specifically designed for use with Testo 330 and Testo 327-2 Combustion Analyzers. It ensures full compatibility and accurate operation with these specific models.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is special calibration required after installing this sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, after replacing the O2 sensor, it's crucial to perform a fresh air calibration and any other specified calibration procedures according to your Testo analyser's operating manual. This step is essential to ensure accurate and reliable readings from your analyser.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why is it important to replace the O2 sensor regularly?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Regular O2 sensor replacement ensures your combustion analyser provides precise flue gas readings, which is essential for optimising system efficiency, verifying safe operation, and complying with industry regulations. A worn sensor can lead to incorrect data and misdiagnosis.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785444032571,"sku":"0390 0292","price":720.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-0390-0292-o2-replacement-sensor.jpg?v=1784010772","url":"https:\/\/www.hvacshop.com.au\/products\/testo-o2-replacement-sensor-0390-0292","provider":"HVAC Supply Shop","version":"1.0","type":"link"}