testo 440 dP - Clima meter incl. differential pressure sensor, 438,65 CHF

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With the testo 440 dP climate measuring instrument, 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 at the same time: a Bluetooth probe, a wired probe and a temperature probe with thermocouple type K connection. Automatic probe recognition and clearly structured measuring menus make for easy operation 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 multi-function measuring instrument Carry out your measurements quickly and easily: The climate meter automatically recognises every 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; mould 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 provides more comfort for your measurements and less cable clutter in the case. It enables measurements without a disturbing cable connection and transmits measured values at a distance of up to 20 m. 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 print out a protocol of the measurement data directly on site. Intelligent calibration concept for highest precision With our digital probes, you can rely on precise measurement results, as the measurement uncertainty of the measuring device is eliminated. You only send in the probes for calibration. This means that the multifunctional measuring device can always be used. Advantages of measuring with the testo 440 dP climate 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 impeller probe (Ø 16 mm) with universal handle can be extended with the telescopic extension – so you can reach a total length of 2 metres Measurements on 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 necessary, with the telescope extension (both available separately) Impeller probes in combination with the testovent measuring funnels and rectifiers for testing supply and exhaust air on disc valves, ventilation grilles and swirl diffusers Practical Bluetooth interface: measure with the flow probes without annoying cables, operate the measuring device by pressing the button on the handle of the probe, e.g. start or stop the time-controlled measurement. e.g. start or stop the time averaging With the practical magnets, attach the multifunctional measuring device securely to metal surfaces (e.g. ventilation duct). Long-term monitoring of indoor air quality The right probe for your needs: Probes for CO 2 , CO, air temperature and air humidity are available as variants with Bluetooth or with a permanently connected cable Easy operation: Enter measurement duration and interval in the menu for long-term measurement and track 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 draught 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 cupboard probe for high-precision flow measurement at the fume cupboard The high-precision impeller probe (Ø 100 mm) is excellently suited for laminar flow measurements in cleanrooms thanks to the low starting speed of 0.1 m/s. Available as a version 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 of 0 … 90 %rh for measuring humidity in clean rooms testo 440 dP - Air velocity and IAQ measuring instrument

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