{"product_id":"testo-440-dp-air-velocity-iaq-measuring-instrument-differential-pressure-sensor-0560-4402","title":"Testo 440 dP Air Velocity and IAQ Measuring Instrument with Differential Pressure Sensor","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eOverview\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThe Testo 440 dP is a precise and reliable measuring instrument for all air velocity and IAQ parameters. Its intuitive operation is enhanced by an integrated differential pressure sensor and clearly structured measurement menus.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis single device simplifies adjusting air conditioning and ventilation systems, monitoring air quality, and performing comfort level measurements. It supports a wide range of high-quality digital probes, offering versatile measurement capabilities without the need for multiple tools.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThe integrated differential pressure sensor allows for essential filter and fan measurements, as well as Pitot tube and K-factor determinations, making it a comprehensive solution for HVAC professionals.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhy It Matters\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eEfficiently manage HVAC and IAQ tasks with a single, versatile tool. The Testo 440 dP streamlines complex measurements, reduces equipment needs, and enhances accuracy, ensuring optimal system performance and occupant comfort.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eTesto 440 dP air velocity and IAQ measuring instrument with integrated differential pressure sensor\u003c\/li\u003e\n\u003cli\u003eConnection hose\u003c\/li\u003e\n\u003cli\u003e3 AA batteries\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eCalibration protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eIntegrated differential pressure sensor for Pitot tube measurements and filter monitoring.\u003c\/li\u003e\n\u003cli\u003eExtendable with a wide range of digital and Bluetooth probes (sold separately) for comprehensive parameter measurement.\u003c\/li\u003e\n\u003cli\u003eWireless measurement capability with Bluetooth probes, reducing cable clutter and extending reach up to 65 feet.\u003c\/li\u003e\n\u003cli\u003eIntuitive, structured measurement menus for quick and efficient volume flow, turbulence, and IAQ analysis.\u003c\/li\u003e\n\u003cli\u003eInternal memory stores up to 7,500 measurement protocols, exportable as CSV via USB.\u003c\/li\u003e\n\u003cli\u003eIntelligent calibration concept: only probes need calibration, allowing continuous instrument use.\u003c\/li\u003e\n\u003cli\u003eRear magnets for secure attachment to metal surfaces during measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eApplications\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eAdjusting and balancing air conditioning and ventilation systems.\u003c\/li\u003e\n\u003cli\u003eMonitoring indoor air quality (IAQ) parameters like CO₂, CO, temperature, and humidity.\u003c\/li\u003e\n\u003cli\u003ePerforming comfort level measurements, including turbulence assessment per EN ISO 7730 \/ ASHRAE 55.\u003c\/li\u003e\n\u003cli\u003eConducting filter and fan measurements using the integrated differential pressure sensor.\u003c\/li\u003e\n\u003cli\u003eLaminar flow measurements in cleanrooms with low startup speed vane probes.\u003c\/li\u003e\n\u003cli\u003eHigh-precision air velocity measurements in fume hoods.\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;\"\u003eFor extensive ductwork or hard-to-reach outlets, leverage the extendable telescope and 90° angle accessories with your vane probes. This setup allows you to accurately measure volume flow without needing a ladder, saving time and improving safety on site.\u003c\/blockquote\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;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e\u003cstrong\u003eTemperature - NTC\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eMeasuring range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e-40.0° to 302.0 °F \/ -40 to +150 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±0.5 % of mv (Remaining Range)\u003cbr\u003e±0.7 °F (167° to 211.8 °F) \/ ±0.4 °C (+75 to +99.9 °C)\u003cbr\u003e±0.5 °F (-13° to 166.8 °F) \/ ±0.3 °C (-25 to +74.9 °C)\u003cbr\u003e±0.7 °F (-40° to -13.2 °F) \/ ±0.4 °C (-40 to -25.1 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0 °F \/ 0.1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e\u003cstrong\u003eTemperature - Type K TC\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eMeasuring range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e-328.0° to 2498.0 °F \/ -200 to +1370 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±(0.5 °F + 0.3 % of mv) \/ ±(0.3 °C + 0.3 % of mv)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0 °F \/ 0.1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e\u003cstrong\u003eDifferential pressure (internal sensor) - Piezoresistive\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eMeasuring range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e-60 to +60 InH₂O \/ -150 to +150 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e±0.1 InH₂O + 1.5 % of mv \/ ±0.2 hPa + 1.5 % of mv (0.40 to +60 InH₂O) \/ (1.01 to +150 hPa)\u003cbr\u003e±0.02 InH₂O (0 to 0.40 InH₂O) \/ ±0.05 hPa (0 to 1.00 hPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e0.00 InH₂O \/ 0.01 hPa\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;\"\u003ePair With\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair with compatible Testo probes, Pitot tubes, and measurement funnels.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eGet Yours Today\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eElevate your HVAC and IAQ measurement capabilities with the Testo 440 dP. Contact HVAC Shop today to discuss your specific needs and integrate this versatile instrument into your toolkit.\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 is the primary function of the Testo 440 dP?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 440 dP is a multifunction measuring instrument designed for precise and reliable measurement of air velocity and Indoor Air Quality (IAQ) parameters, including differential pressure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can the Testo 440 dP connect to multiple probes simultaneously?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, it can connect up to three probes simultaneously: one Bluetooth probe, one wired probe, and one temperature probe via a type K thermocouple connector.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the Testo 440 dP handle data management?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The instrument stores up to 7,500 measurement protocols internally, which can be exported as CSV files via a USB port for further processing on a computer.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43532387221563,"sku":"0560 4402","price":1546.47,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/testo-440-dp-front-en.jpg?v=1779346090","url":"https:\/\/www.hvacshop.com.au\/products\/testo-440-dp-air-velocity-iaq-measuring-instrument-differential-pressure-sensor-0560-4402","provider":"HVAC Supply Shop","version":"1.0","type":"link"}