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This testo 440 kit is great for carrying out measurements in ventilation ducts. The testo 440 air velocity and IAQ measuring instrument and its hot wire probe (Ø 0.35") with temperature sensor can all be safely stored in the included case.
Details on kit components
● Testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401)
● Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including temperature sensor with telescope (extendable to 2.8') and calibration protocol (0635 1032)
● Basic case for testo 440 and 1 probe