{"product_id":"testo-no2-replacement-sensor-0390-0075","title":"Testo NO2 Replacement Sensor","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eKeep your Testo combustion analyser accurate and ready for emissions testing with a genuine Testo 0390 0075 NO2 replacement sensor. This component is crucial for anyone performing flue gas analysis, ensuring your readings for nitrogen dioxide are reliable.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eOn Australian job sites, regular sensor calibration and replacement are essential for compliance and safety. You know the drill: an analyser is only as good as its sensors, and pushing old ones past their prime just leads to call-backs.\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\u003eHVAC\/R technicians performing combustion analysis\u003c\/li\u003e\n\u003cli\u003eIndustrial maintenance teams monitoring emissions\u003c\/li\u003e\n\u003cli\u003eCompliance and environmental testing professionals\u003c\/li\u003e\n\u003cli\u003eAnyone servicing Testo 335 or 350 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 NO2 sensor is specifically designed for use with Testo 335 and Testo 350 flue gas analysers. It measures nitrogen dioxide concentration in a range of 0 to 500 ppm. 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\u003e\n\u003cstrong\u003ePrecision Measurement:\u003c\/strong\u003e Accurately detects nitrogen dioxide (NO2) levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Range:\u003c\/strong\u003e Capable of reading NO2 concentrations from 0 to 500 ppm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Designed for straightforward installation into compatible Testo analysers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Testo Part:\u003c\/strong\u003e Ensures optimal performance and longevity for your analyser.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 16px; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eSensor Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eNitrogen Dioxide (NO2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0 to 500 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eCompatible Analysers\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTesto 335, Testo 350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\n\u003cli\u003e1 x Testo 0390 0075 NO2 Replacement Sensor\u003c\/li\u003e\n\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\u003ePower down and isolate your Testo 335 or 350 analyser according to manufacturer instructions.\u003c\/li\u003e\n\u003cli\u003eCarefully open the analyser housing to access the sensor compartment.\u003c\/li\u003e\n\u003cli\u003eRemove the old NO2 sensor, noting its orientation.\u003c\/li\u003e\n\u003cli\u003eInsert the new Testo 0390 0075 NO2 replacement sensor, ensuring it's seated correctly.\u003c\/li\u003e\n\u003cli\u003eClose the analyser housing and power it back on.\u003c\/li\u003e\n\u003cli\u003ePerform a full calibration and zeroing sequence as per your analyser's manual before taking measurements.\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\u003eOnly compatible with Testo 335 and 350 flue gas analysers.\u003c\/li\u003e\n\u003cli\u003eIncorrect installation can damage the analyser or provide inaccurate readings.\u003c\/li\u003e\n\u003cli\u003eAlways follow the analyser manufacturer's specific instructions for sensor replacement and calibration.\u003c\/li\u003e\n\u003cli\u003eCombustion analysis should be performed by competent, trained professionals.\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\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eTradie Pro Tip: Don't just swap the sensor and go. Always run a fresh calibration and zero check after installing any new sensor. It ensures your analyser is spot-on, saving you from re-dos and keeping your customer happy.\u003c\/p\u003e\n\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 NO2 sensor with other genuine Testo replacement parts, such as O2 or CO sensors, and consider a calibration gas kit to ensure your analyser always delivers precise results. Check out our range of flue gas analysers for new equipment.\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\": \"What Testo analysers is the 0390 0075 NO2 sensor compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 0390 0075 NO2 replacement sensor is specifically designed for use with Testo 335 and Testo 350 flue gas analysers. It ensures accurate nitrogen dioxide measurements within these models.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the measurement range of this NO2 sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This NO2 replacement sensor is capable of measuring nitrogen dioxide concentrations from 0 to 500 ppm (parts per million). This range covers typical requirements for combustion and emissions testing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does replacing this sensor require calibration of the analyser?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, after installing the Testo 0390 0075 NO2 replacement sensor, it is critical to perform a full calibration and zeroing sequence according to your Testo analyser's operating manual. This step ensures the new sensor is properly integrated and provides accurate readings.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785701457979,"sku":"0390 0075","price":1977.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-0390-0075-no2-replacement-sensor.jpg?v=1784012958","url":"https:\/\/www.hvacshop.com.au\/products\/testo-no2-replacement-sensor-0390-0075","provider":"HVAC Supply Shop","version":"1.0","type":"link"}