{"product_id":"testo-300-longlife-flue-gas-analyzer-o2-co-4000ppm-0633-3004-72","title":"testo 300 Longlife Flue Gas Analyzer (O2, CO up to 4,000 ppm)","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThe Testo 300 Longlife flue gas analyzer is built for heating engineers handling daily installation and maintenance work. It gives you quick, accurate readings for flue gas, draught, pressure, ambient CO, and differential temperature, with an option to retrofit an NO sensor.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis unit combines years of measurement tech with a modern smart-touch interface and a tough build, making it a reliable mate on any job site. I've been in plenty of tight boiler rooms, and a fast, clear display like this really cuts down on time.\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\u003eHeating engineers\u003c\/li\u003e\n\u003cli\u003eHVAC service and maintenance teams\u003c\/li\u003e\n\u003cli\u003eInstallers working with heating systems\u003c\/li\u003e\n\u003cli\u003eBuilding compliance testing\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;\"\u003eThe Testo 300 Longlife is designed for flue gas measurement on a wide range of heating systems. It comes with O2 and CO sensors (up to 4,000 ppm) installed, and you can add an NO sensor later if your job requires it.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIt's also compatible with various optional probes for tasks like gas flow pressure, gas pipe testing, differential temperature, and ambient CO measurement. If you're running a different model or need specific probe types, check the Testo catalogue for compatible accessories 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\u003eSmart-Touch Operation: Intuitive 5-inch HD display responds quickly, similar to a smartphone, making navigation through measurement menus easy.\u003c\/li\u003e\n\u003cli\u003eLonglife Sensors: High-quality O2 and CO sensors offer up to a 6-year service life, reducing replacement frequency and downtime.\u003c\/li\u003e\n\u003cli\u003eAutomatic Sensor Protection: Extends the life of the sensors by protecting them during intensive daily use.\u003c\/li\u003e\n\u003cli\u003eOn-Site Documentation: Create and save PDF measurement reports directly on the instrument, complete with customer data and a signature function.\u003c\/li\u003e\n\u003cli\u003eWLAN \u0026amp; Bluetooth Connectivity: Email reports straight from the job site via WLAN or print readings immediately with a compatible Bluetooth printer.\u003c\/li\u003e\n\u003cli\u003eFast Zeroing: Ready to measure quickly from standby, so you're not waiting around between jobs.\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;\"\u003eDetails\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;\"\u003eTemperature - TC Type K (NiCr-Ni) Measuring Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e-40 to +1200 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTemperature Accuracy (0.0 to +100.0 °C)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±0.5 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTemperature Accuracy (Remaining Range)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±0.5 % of mv\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTemperature Resolution (-40 to +999.9 °C)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0.1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTemperature Resolution (Remaining Range)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDifferential Pressure - Piezoresistive Measuring Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e-100 to +200 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDifferential Pressure Accuracy (0 to +50.0 hPa)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±0.5 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDifferential Pressure Accuracy (+50.1 to +100.0 hPa)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±1 % of mv\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDifferential Pressure Accuracy (+100.1 to +200 hPa)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±1.5 % of mv\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDifferential Pressure Resolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0.01 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eFlue Gas O2 Resolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0.1 Vol.%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eFlue Gas CO (internal sensor) Measuring Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eup to 4,000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eBattery Life\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e10 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eLarge 5-inch HD smart-touch\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 300 Longlife flue gas analyzer with O2 and CO sensor (up to 4,000 ppm)\u003c\/li\u003e\n\u003cli\u003eNO sensor (can be retrofitted, not included as standard)\u003c\/li\u003e\n\u003cli\u003eUSB mains unit\u003c\/li\u003e\n\u003cli\u003eTesto Bluetooth Connector\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\u003e\n\u003cstrong\u003ePre-site Check:\u003c\/strong\u003e Ensure the battery is charged (up to 10 hours run time) and the zeroing phase is complete for accurate readings. The Testo 300 can be used straight from standby, cutting down your wait time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Setup:\u003c\/strong\u003e Select and attach the appropriate flue gas probe (e.g., modular or flexible) using the quick-change click system. For safe operation, always check probe condition before inserting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection \u0026amp; Measurement:\u003c\/strong\u003e Insert the probe into the flue, ensuring a good seal. The intuitive measurement menus guide you through flue gas, draught, pressure, ambient CO, or differential temperature readings on the 5-inch HD display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Use the smart-touch display to create and save PDF measurement reports on site. You can add customer data and get signatures directly on the instrument.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReport Sharing:\u003c\/strong\u003e Email reports via WLAN (using your phone as a hotspot) or print immediately with a compatible Bluetooth printer to keep your office and customers updated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost-use Care:\u003c\/strong\u003e After each job, carefully remove, clean, and store probes to maintain their accuracy and extend their service life. Avoid harsh solvents.\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\u003eEnsure you have the correct probe for the measurement task, as many are available separately.\u003c\/li\u003e\n\u003cli\u003eThis unit is for flue gas analysis on heating systems; it's not designed for continuous industrial process monitoring without suitable accessories.\u003c\/li\u003e\n\u003cli\u003eAlways follow manufacturer's instructions for probe insertion depths and positioning to get reliable readings.\u003c\/li\u003e\n\u003cli\u003eRegular calibration and maintenance of sensors are crucial to ensure accuracy, especially for compliance testing.\u003c\/li\u003e\n\u003cli\u003eMeasurements involving combustion require adherence to local safety regulations and safe work practices.\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;\"\u003eWhen you're doing back-to-back jobs, the 10-hour battery life and quick zeroing on the Testo 300 are a real game-changer. Keep it in standby, and you can jump straight into the next system without wasting time waiting for it to cycle.\u003c\/blockquote\u003e\u0026lt;2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u0026gt;Pair With\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair with Testo modular flue gas probes for versatile application on different flue diameters, or a Testo Bluetooth printer for instant hard copies on site. Don't forget to browse our range of Testo accessories for specific measurement tasks.\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's the maximum CO measurement range of this analyzer?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 300 Longlife flue gas analyzer includes a CO sensor capable of measuring concentrations up to 4,000 ppm. This range is suitable for most standard heating system compliance and service checks.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I add an NO sensor to this model later?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Testo 300 Longlife model 0633 3004 72 is designed to be retrofitted with an NO sensor. This allows you to upgrade its capabilities if your job requirements change in the future without needing a new analyzer.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What's the expected service life for the O2 and CO sensors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The O2 and CO Longlife sensors in this Testo 300 model offer an extended service life of up to 6 years. This means fewer sensor replacements and reduced maintenance costs over the instrument's lifespan.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43754108059707,"sku":"0633 3004 72","price":5456.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-300-co-4000ppm-nointegrable_e5cf959b-21ee-4813-a5e5-eeb7bb52515e.jpg?v=1783396051","url":"https:\/\/www.hvacshop.com.au\/products\/testo-300-longlife-flue-gas-analyzer-o2-co-4000ppm-0633-3004-72","provider":"HVAC Supply Shop","version":"1.0","type":"link"}