Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one vane probe head (Ø 16 mm), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.
Product Description
Products in set
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testo 400 - Universal IAQ instrument
Order-Nr. 0560 0400
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Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55
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High-precision, location-independent and integrated differential pressure sensor
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Vane probe (Ø 16 mm, digital) - with Bluetooth®, including temperature sensor
Order-Nr. 0635 9571
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Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature
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Precise: accurate measurement results from +0.6 to +50 m/s
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100 mm vane probe head
Order-Nr. 0635 9430
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Intuitive: parallel determination of air velocity, volume flow and air temperature
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Convenient: probe head is easy to attach to the universal Bluetooth or cable handle or to the extendable telescope (all available to order separately) using the adapter
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High-precision humidity/temperature probe head
Order-Nr. 0636 9770
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Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement
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Precise: carry out humidity measurements with an accuracy of ± (0.6% RH + 0.7 % of m.v.) in the range between 0 and 90% RH, calculation of wet bulb temperature, dew point and absolute humidity
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90° angle for connecting vane probes (Ø 100 mm)
Order-Nr. 0554 0991
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Position 100 mm vane probes with universal handle correctly at ceiling outlets
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Simply connect it to the extendable telescope for air velocity probes with universal handle
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Transport case for air flow measurements
Order-Nr. 0516 1400
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Sturdy plastic case
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Offers sufficient space for measuring instrument, flow probes (e.g. hot wire probes) and accessories
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Delivery Scope
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testo 400 universal IAQ instrument, silicone hoses, mains unit with USB cable, calibration protocol, instruction manual (0560 0400)
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Vane probe with Bluetooth® including temperature sensor (consisting of 16 mm vane probe head, handle adapter and Bluetooth® handle), 4 x AA batteries, telescope (can be extended up to 1.0 m) and calibration protocol (0635 9571)
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Vane probe head (Ø 100 mm) including temperature sensor, bracket for testovent measurement funnel and calibration protocol (0635 9430)
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High-precision humidity/temperature probe head including calibration protocol (0636 9770)
Please do not use the probe head in condensing atmospheres. For continuous application in high-humidity ranges
> 80% RH at ≤ 30 °C for > 12 h
> 60% RH at > 30 °C for > 12 h
Please get in touch with Testo Service or contact us via the Testo website -
90° angle for connecting vane probes (Ø 100 mm) (0554 0991)
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Transport case for air flow measurements (0516 1400)































