Product Description

Products in set

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  testo 440 - Air velocity and IAQ measuring instrument

  Order-Nr. 0560 4401

  • Intuitive: clearly structured measurement menus for volume flow, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂

  • Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

•  

  

  Hot wire probe (digital) - including temperature sensor, wired

  Order-Nr. 0635 1032

  • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

  • Precise: automatic absolute pressure compensation guarantees accurate measurement results

Delivery Scope

• testo 440 - Air velocity and IAQ measuring instrument

  Order-Nr.  0560 4401

  Temperature - NTC
  Measuring range	-40 to +150 °C
  Accuracy	±0.4 °C (-40 to -25.1 °C) ±0.3 °C (-25 to +74.9 °C) ±0.4 °C (+75 to +99.9 °C) ±0.5 % of mv (Remaining Range)
  Resolution	0.1 °C

   

  Temperature - TC Type K (NiCr-Ni)
  Measuring range	-200 to +1370 °C
  Accuracy	±(0.3 °C + 0.3 % of mv)
  Resolution	0.1 °C

   

  General technical data
  Weight	250 g
  Dimensions	154 x 65 x 32 mm
  Operating temperature	-20 to +50 °C
  Product colour	black/orange
  Connectable probes	1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K
  Battery type	3 AA mignon 1.5 V
  Battery life	12 h (typically vane measurement)
  Interface	Bluetooth®; USB
  Storage temperature	-20 to +50 °C

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• Hot wire probe (digital) - including temperature sensor, wired

  Order-Nr.  0635 1032

  Temperature - NTC
  Measuring range	-20 to +70 °C
  Accuracy	±0.5 °C
  Resolution	0.1 °C

   

  Absolute Pressure
  Measuring range	+700 to +1100 hPa
  Accuracy	±3.0 hPa
  Resolution	0.1 hPa

   

  Velocity - Hot wire
  Measuring range	0 to 30 m/s
  Accuracy	±(0.03 m/s + 4 % of mv) (0 to 20 m/s) ±(0.5 m/s + 5 % of mv) (20.01 to 30 m/s)
  Resolution	0.01 m/s

   

  General technical data
  Storage temperature	-20 to +70 °C
  Weight	90 g
  Dimensions	315 x 12 x 12 mm
  Operating temperature	-20 to +70 °C
  Cable length	1.7 m
  Length telescope	850 mm
  Probe head diameter	9 mm
  Diameter telescope	12 mm
  Product colour	Black; silver
  Diameter probe shaft	12 mm