Testo 440 dP - Climatic measuring device incl. differential pressure sensor

With the testo 440 dP climate meter, you can measure and store all climate-relevant parameters in combination with the high-quality, digital probes (please order probes separately). Up to 3 probes can be connected simultaneously: a Bluetooth probe, a wired probe and a temperature probe with thermocouple type K connection. Automatic probe recognition and clearly structured measurement menus ensure conceivable ease of use and simplify your everyday work. A differential pressure sensor is already integrated in the testo 440 dP. This enables measurements on filters and fans as well as pitot tube and k-factor measurements (please order pitot tube separately). In just a few clicks to measurement with the testo 440 dP multifunction meter Perform your measurements quickly and easily: The climatic meter automatically recognizes each connected probe. This saves you having to manually reset the parameters when changing probes. Clearly structured measuring menus for volumetric flow measurement in the duct/at the diffuser, funnel measurement, volumetric flow determination by means of differential pressure and K-factor, turbulence degree measurement, determination of cooling/heating capacity; mold indication and long-term measurement optimally support you in your daily work. Wireless and space-saving: more applications, less equipment Unlimited versatility: A universally applicable handle can be connected to all probe heads - so you can master more applications with less equipment and save space. The Bluetooth handle makes your measurements more comfortable and reduces cable clutter in the case. It allows you to take measurements without an annoying cable connection and transmits measured values up to a distance of 20 meters. Or use the cable handle as a practical alternative for connecting testo probe heads. This is advantageous when Bluetooth signals are not permitted. Practical measurement data management The multifunctional measuring instrument stores up to max. 7500 measurement logs, which can be read out via a USB interface and processed further as a CSV file on your computer (e.g. with Excel). With the testo BLUETOOTH/IRDA printer (please order separately) you have the option; to make a log printout of the measurement data directly on site. Intelligent calibration concept for maximum precision With our digital probes, you can rely on precise measurement results because the measurement uncertainty of the measuring instrument is eliminated. You only send in the probes for calibration. This means that the multifunctional measuring instrument can always be used. Advantages of measuring with the testo 440 dP climatic meter Precise and reliable in the duct and at the air outlet Wide range of connectable probes: Hot-wire and vane probes (Ø 16 mm) for measurements in the duct; large vane probes with Ø 100 mm for measurements at air/ceiling outlets Calculate volume flow quickly: simply configure the dimension and geometry of the duct cross-section in the measuring menu and have the volume flow displayed directly on the measuring instrument Even in particularly large ducts you can measure conveniently. The extendable telescope of the hot-wire and paddle-wheel probe (Ø 16 mm) with universal handle can also be extended with the telescopic extension - so you can achieve a total length of 2 meters Measurements at air/ceiling outlets can be carried out easily and without a ladder. Equip the impeller probe (Ø 100 mm) with the extendable telescope with 90° angle and, if required, with the telescope extension (both available separately) Impeller probes in conjunction with the testovent measuring funnels and rectifiers for testing supply and exhaust air at poppet valves, ventilation grilles and swirl diffusers Practical Bluetooth interface: measure with the flow probes without annoying cables, operate the measuring instrument by pressing the button on the probe handle, e. g.E.g. start or stop time averaging With the practical magnets, securely attach the multi-function measuring device to metal surfaces (e.g. Long-term monitoring of indoor air quality The right probe for your needs: probes for CO 2 , CO, air temperature and humidity are available as variants with Bluetooth or with permanently connected cable Easy operation: Enter measurement duration and interval in the menu for long-term measurement and track it over the course of the day Internal memory for up to 7500 measurement logs Turbulence degree measurement according to EN ISO 7730 / ASHRAE 55 Achieve high accuracy even at low flow velocities with turbulence degree probe Automatic calculation of draft risk and turbulence degree according to EN ISO 7730/ASHRAE 55 For comfortable measurements at different heights, we recommend using our measuring stand for comfort measurement. The standard-compliant positioning of the turbulence degree probes is thus particularly easy Probe range for cleanrooms and laboratories Fume hood probe for high-precision flow measurement at the fume hood The high-precision impeller probe (Ø 100 mm) is excellently suited for laminar flow measurements in cleanrooms thanks to the low startup speed of 0.1 m/s. Available as a variant with Bluetooth or with a permanently connected cable High-precision temperature/humidity probe (0636 9771 or 0636 9772) with an accuracy of ±(0;6 %rh + 0.7 % v. Mw.) in the range from 0 ... 90 %rh for measuring humidity in cleanrooms