{"product_id":"testo-h2s-replacement-sensor-0390-0079","title":"Testo H2S 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 0079 H2S Replacement Sensor is your go-to for keeping your Testo 350 analyser in top shape, ensuring accurate hydrogen sulphide (H2S) readings in combustion gas analysis.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eWhen you're dealing with combustion emissions, especially around industrial or commercial burners, getting H2S levels right is crucial for safety and compliance. A dud sensor will waste your time and give you bad data.\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\u003eService techs performing combustion analysis\u003c\/li\u003e\n\u003cli\u003eIndustrial maintenance teams monitoring emissions\u003c\/li\u003e\n\u003cli\u003eWorkshops servicing Testo 350 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 H2S replacement sensor is specifically designed for use with Testo 350 series combustion gas analysers. It ensures seamless integration and accurate measurement within the analyser's system.\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 replacement for Testo 350 analysers.\u003c\/li\u003e\n\u003cli\u003eMeasures hydrogen sulphide (H2S) from 0-300 ppm.\u003c\/li\u003e\n\u003cli\u003eEssential for accurate combustion emission testing.\u003c\/li\u003e\n\u003cli\u003eMaintains analyser's performance and measurement integrity.\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;\"\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;\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0-300 ppm (H2S)\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 350 Analysers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eElectrochemical Sensor\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\u003eTesto 0390 0079 H2S Replacement Sensor, 0-300 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\u003eEnsure your Testo 350 analyser is powered off and cooled down.\u003c\/li\u003e\n\u003cli\u003eCarefully open the analyser's sensor compartment, following manufacturer guidelines.\u003c\/li\u003e\n\u003cli\u003eGently remove the old H2S sensor. Note its orientation for the new sensor.\u003c\/li\u003e\n\u003cli\u003eInsert the new Testo 0390 0079 H2S Replacement Sensor, making sure it seats correctly.\u003c\/li\u003e\n\u003cli\u003eClose the compartment and power on the analyser. Allow it to warm up and perform a fresh air purge before calibration.\u003c\/li\u003e\n\u003cli\u003eAlways perform a zero and span calibration after replacing a sensor to ensure accurate readings.\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 350 series analysers.\u003c\/li\u003e\n\u003cli\u003eGas analysers and their components should be handled with care; refer to your Testo 350 manual.\u003c\/li\u003e\n\u003cli\u003eAlways ensure proper ventilation when working with combustion gases.\u003c\/li\u003e\n\u003cli\u003eFollow Australian standards and Safe Work guidance for all gas analysis procedures.\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;\"\u003eDon't just swap the sensor and hope for the best. Always run a full fresh air purge and a calibration check after replacement. This makes sure your readings are on the money and keeps your Testo 350 reliable.\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 analyser spares, calibration gases, and gas sampling probes for a complete emission testing setup.\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 analyser models is this H2S sensor compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This Testo 0390 0079 H2S replacement sensor is specifically designed for use with the Testo 350 series of combustion gas analysers. It ensures correct fitment and function within these models for H2S measurement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the measurement range for this H2S sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 0390 0079 H2S sensor provides an accurate measurement range of 0 to 300 parts per million (ppm) of hydrogen sulphide. This covers common requirements for combustion emission analysis.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included when I purchase this replacement sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each purchase includes one Testo 0390 0079 H2S Replacement Sensor, rated for 0-300 ppm. No additional tools or accessories are included, as this is a direct component replacement.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785702735931,"sku":"0390 0079","price":2189.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-0390-0079-h2s-replacement-sensor.jpg?v=1784012965","url":"https:\/\/www.hvacshop.com.au\/products\/testo-h2s-replacement-sensor-0390-0079","provider":"HVAC Supply Shop","version":"1.0","type":"link"}