{"product_id":"testo-so2-replacement-sensor-0390-0081","title":"Testo SO2 Replacement Sensor","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Testo SO2 replacement sensor is designed to keep your Testo 335 or 350 combustion analyser running true. It's crucial for any tech who needs accurate sulphur dioxide readings for compliance or efficiency checks.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eMaintaining your analyser with fresh sensors ensures you're always getting reliable data, especially when you're troubleshooting tricky combustion issues on commercial boilers or industrial furnaces. You don't want to be second-guessing a reading when a client's plant is on the line.\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 and refrigeration technicians\u003c\/li\u003e\n\u003cli\u003eIndustrial plant maintenance crews\u003c\/li\u003e\n\u003cli\u003eEmissions testing specialists\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 SO2 sensor is specifically built for direct integration with the Testo 335 and Testo 350 combustion and emission analysers.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIt's designed to replace existing sulphur dioxide sensors within these models, ensuring seamless functionality and accurate measurement in the 0-5000 ppm range.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIf 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\u003eDirect fit for Testo 335 and 350 analysers, making replacement straightforward.\u003c\/li\u003e\n\u003cli\u003eMeasures sulphur dioxide (SO2) concentration up to 5000 ppm.\u003c\/li\u003e\n\u003cli\u003eHelps maintain the accuracy required for emission compliance and system optimisation.\u003c\/li\u003e\n\u003cli\u003eEnsures continued reliable performance of your Testo 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;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eValue\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;\"\u003eMeasurement Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eSulphur Dioxide (SO2)\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;\"\u003e0-5000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTesto 335, Testo 350 Analysers\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\u003eOne Testo 0390 0081 SO2 Replacement Sensor, 0-5000 ppm\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 your Testo 335 or 350 analyser completely and disconnect it from any active systems.\u003c\/li\u003e\n\u003cli\u003eRefer to your analyser's manual for specific instructions on accessing and removing the old SO2 sensor.\u003c\/li\u003e\n\u003cli\u003eCarefully install the new Testo 0390 0081 sensor, ensuring it seats correctly in its bay.\u003c\/li\u003e\n\u003cli\u003ePower up your analyser and perform any necessary calibration or zeroing procedures as per the manufacturer's guidelines to confirm accurate operation.\u003c\/li\u003e\n\u003cli\u003eAfter installation, always conduct a system check to ensure the analyser is reading correctly before performing critical 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 Testo 350 analysers.\u003c\/li\u003e\n\u003cli\u003eInstallation should be performed in a clean, dry environment, following manufacturer's guidelines.\u003c\/li\u003e\n\u003cli\u003eExposure to high concentrations of SO2 can be hazardous; ensure adequate ventilation when working with emission sources.\u003c\/li\u003e\n\u003cli\u003eAlways follow Australian standards and Safe Work guidance when performing combustion or emission analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTradie Pro Tip\u003c\/h2\u003e\n\u003cblockquote style=\"border-left: 4px solid #007acc; background-color: #f9f9f9; font-style: italic; padding: 15px; margin: 20px 0;\"\u003e\nWhen swapping out gas sensors, it's a good habit to check the expiration date on the new sensor if it has one. Also, give your analyser a full zeroing and calibration run after any sensor replacement. It locks in the accuracy and keeps you out of trouble with dodgy readings.\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 with other Testo replacement sensors or a new Testo 335 or 350 analyser for complete emission monitoring solutions. Also check out our range of flue gas probes.\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 this SO2 sensor compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This Testo 0390 0081 SO2 replacement sensor is specifically designed for use with the Testo 335 and Testo 350 combustion and emission analysers. It ensures a direct fit and proper functionality for these models.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the measurement range of this SO2 sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 0390 0081 sensor can accurately measure sulphur dioxide (SO2) concentrations within a range of 0 to 5000 parts per million (ppm). This covers common emission testing requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is any special calibration required after installing the new sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, after installing the Testo 0390 0081 SO2 replacement sensor, it's recommended to perform a full zeroing and calibration procedure on your Testo 335 or 350 analyser. This ensures the new sensor is properly integrated and provides accurate readings for optimal performance.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785701687355,"sku":"0390 0081","price":1905.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/xtesto-0390-0081-so2-replacement-sensor.jpg.pagespeed.ic.MPYziV3GbG.jpg?v=1784012966","url":"https:\/\/www.hvacshop.com.au\/products\/testo-so2-replacement-sensor-0390-0081","provider":"HVAC Supply Shop","version":"1.0","type":"link"}