{"product_id":"testo-no-replacement-sensor-0390-0093","title":"Testo NO Replacement Sensor 0-3000 ppm","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Testo 0390 0093 NO Replacement Sensor was designed for use with Testo 335 and 350 combustion analysers. It provided accurate measurements of nitrogen monoxide, a key component in emission testing, helping techs ensure systems ran cleaner and met compliance standards. While this specific sensor is no longer available, understanding its specifications can assist in identifying suitable alternatives or servicing legacy equipment still in the field.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eBack when it was available, fitting a fresh sensor was a routine job to keep your analyser calibrated and ready for the next rooftop job or boiler service. Keeping accurate readings is crucial, especially for environmental compliance.\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: 10px;\"\u003eHVAC service technicians\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eCombustion analysis and flue gas testing teams\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eEnvironmental monitoring 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 Testo NO replacement sensor was specifically engineered for seamless integration with Testo 335 and Testo 350 series combustion analysers. It was designed to maintain the measurement accuracy and reliability these units are known for. If you're running a different model, check fittings and specs before ordering any replacement parts.\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: 10px;\"\u003e\n\u003cstrong\u003ePrecise NO Measurement:\u003c\/strong\u003e Capable of accurately detecting nitrogen monoxide (NO) concentrations.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e Designed to measure NO levels from 0 up to 3000 ppm (parts per million).\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Engineered as a drop-in replacement part for compatible Testo analysers.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eAnalyser Integration:\u003c\/strong\u003e Full compatibility with Testo 335 and 350 models for reliable data.\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\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\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;\"\u003eNitrogen Monoxide (NO)\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 3000 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\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0390 0093\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\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e1 x Testo 0390 0093 NO Replacement Sensor, 0-3000 ppm\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\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eWhen this sensor was in production, replacing it was a straightforward process:\u003c\/p\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: 10px;\"\u003e\n\u003cstrong\u003ePower Down:\u003c\/strong\u003e Always ensure your Testo analyser is powered off and disconnected from any power source.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eAccess Sensor Bay:\u003c\/strong\u003e Carefully open the analyser's casing to access the sensor compartment, following the manufacturer's instructions.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eRemove Old Sensor:\u003c\/strong\u003e Gently disconnect and remove the old NO sensor. Note its orientation for correct replacement.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eInstall New Sensor:\u003c\/strong\u003e Insert the new 0390 0093 sensor into its designated slot, ensuring a secure and correct connection.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eRecalibrate:\u003c\/strong\u003e Once installed, close the analyser, power it on, and perform a full calibration as per the Testo analyser's manual 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 style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eThis product, Testo 0390 0093, has been discontinued by the manufacturer and is no longer available.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eOnly compatible with Testo 335 and 350 series analysers. Using it with other models may lead to inaccurate readings or damage.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eAlways refer to your Testo analyser's user manual for specific sensor replacement and calibration procedures.\u003c\/li\u003e\n\u003cli style=\"font-size: 16px; line-height: 1.6; margin-bottom: 10px;\"\u003eEnsure proper safety precautions are followed when opening analyser casings.\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;\"\u003eRegular calibration and sensor checks are vital for any combustion analyser. Even if a sensor isn't at its end-of-life, calibration drift is real – don't skip it if you want reliable data. Keep your analyser's firmware up to date too, as this can affect sensor performance.\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;\"\u003eFor comprehensive flue gas analysis, this type of sensor would typically be paired with a Testo 335 or 350 combustion analyser, along with other essential gas sensors like O2 and CO sensors, and a suitable probe for sampling flue gases.\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 was this sensor compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 0390 0093 NO Replacement Sensor was designed specifically for use with Testo 335 and Testo 350 series combustion analysers. It ensured accurate nitrogen monoxide measurements within these models.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the Testo 0390 0093 NO sensor still available for purchase?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No, this specific Testo 0390 0093 NO Replacement Sensor has been discontinued by the manufacturer. It is no longer available for purchase, and there are no direct replacement options from Testo.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What was the measurement range of this NO sensor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This sensor was capable of measuring nitrogen monoxide (NO) concentrations over a range of 0 to 3000 parts per million (ppm). This provided a broad detection capability for emission analysis.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43785701228603,"sku":"0390 0093","price":1854.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-0390-0093-no-replacement-sensor_c2378339-2285-4fd0-bc01-38a575139b3d.jpg?v=1784012961","url":"https:\/\/www.hvacshop.com.au\/products\/testo-no-replacement-sensor-0390-0093","provider":"HVAC Supply Shop","version":"1.0","type":"link"}