Delivery Scope

Testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol, Vane probe (Ø 16 mm) with fixed cable (cable length 1.7 m), including telescope (can be extended to 0.85 m) and calibration protocol, Basic case

Vane Anemometer - Testo 440 16 mm Vane Kit
Model No: Testo 440 16 mm Vane Kit Part No: 0563 4401

Testo 440 16 mm Vane Kit for carrying out measurements in ventilation ducts, the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 16 mm) are safely stowed away in the case.

  1. Clearly structured measurement menu for volume flow and determination of air velocity in ventilation ducts

  2. Integrated telescope that can be extended to 0.85 m

  3. Internal data storage and USB port for data export



Velocity / Volume flow
Measuring range 0.6 to 50 m/s
Accuracy ±(0.2 m/s + 1 % of mv) (0.6 to 40 m/s) ±(0.2 m/s + 2 % of mv) (40.1 to 50 m/s)
Resolution 0.1 m/s
General technical data
Storage temperature -10 to +70 °C
Operating temperature -10 to +70 °C
Cable length 1.7 m
Length telescope 850 mm
Probe head diameter 16 mm
Diameter telescope 12 mm

Delivery Scope

Testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol, Vane probe (Ø 100 mm) with Bluetooth including temperature sensor (consisting of 100 mm vane probe head, handle adapter and Bluetooth handle), 4 x AA batteries and calibration protocol, Basic case

Large Vane Anemometer - Testo 440 100 mm Vane Kit with Bluetooth
Model No: Testo 440 100 mm Vane Kit with Bluetooth Part No: 0563 4403

Testo 440 - 100 mm Large Vane Kit for carrying out measurements at air outlets, The testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor are all safely stowed away in the case.

  1. Clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at air outlets

  2. Combine the vane probe with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required

  3. Wireless probe, internal data storage and USB port for your data export



Temperature - NTC
Measuring range -20 to +70 °C
Accuracy ±0.5 °C
Resolution 0.1 °C
Velocity / Volume flow
Measuring range 0.3 to 35 m/s 0.3 to 35 m/s
Accuracy ±(0.1 m/s + 1.5 % of mv) (0.3 to 20 m/s) ±(0.2 m/s + 1.5 % of mv) (20.01 to 35 m/s)
Resolution 0.01 m/s 0.01 m/s
General technical data
Storage temperature -20 to +60 °C
Operating temperature -5 to +50 °C
Probe head diameter 100 mm
Battery type 4 x type AA batteries
Data transfer Bluetooth
Radio range 20 m

Delivery Scope

Testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol, Hot wire probe (Ø 9 mm) with fixed cable (length 1.7 m) including temperature sensor, with telescope (0.85 m) and Basic case

Hot Wire Anemometer - Testo 440 Hot Wire Kit
Model No: Testo 440 Hot Wire Kit Part No: 0563 4400

Testo 440 Hot Wire Anemometer Kit for carrying out measurements in ventilation ducts, the testo 440 air velocity and IAQ measuring instrument and the hot wire probe (Ø 9 mm) including temperature sensor.

  • Clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

  • Automatic absolute pressure compensation guarantees accurate measurement results



Temperature - NTC
Measuring range -20 to +70 °C
Accuracy ±0.5 °C
Resolution 0.1 °C
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
Operating temperature -20 to +70 °C
Cable length 1.7 m
Length telescope 850 mm
Probe head diameter 9 mm
Diameter telescope 12 mm

Delivery Scope

Testo 420 air capture hood including measuring instrument, 610 x 610 mm hood, 5 x tension rods, USB cable, batteries and trolley

Air Capture Hood - Testo 420
Model No: Testo 420 Part No: 0563 4200

Testo 420 air capture hood for larger air inlets and outlets enables fast and precise compliance with hygiene guidelines and requirements concerning room air quality. It provides reliable support with the calculation of the overall air capture on HVAC systems, for instance in hospitals, office buildings or commercial buildings.

  1. Less than 2.9 kg weight
  2. Flow straightener for more precise measurement at swirl outlets
  3. Removable and tiltable measuring instrument with a large display
  4. App integration via Bluetooth for fast and easy monitoring and reporting on site


Temperature - NTC
Measuring Range -20 to +70 °C
Accuracy ±0.5 °C (0 to +70 °C) ±0.8 °C (-20 to +0 °C)
Resolution 0.1 °C
Reaction time 45 s (t90)
Humidity - Capacitive
Measuring range 0 to 100 %RH
Accuracy ±1.8 %RH + 3 % of mv at +25 °C (5 to 80 %RH)
Resolution 0.1 %RH
Volume flow
Measuring range 40 to 4000 m³/h
Accuracy ±3 % of mv + 12 m³/h at +22 °C 1013 hPa (85 to 3500 m³/h)
Reaction time 1 s (t90)
Resolution 1 m³/h
Differential Pressure - Piezoresistive
Measuring range -120 to +120 Pa
Accuracy ±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa
Resolution 0.001 Pa
Reaction time 1 s (t90)
Absolute Pressure
Measuring range 700 to 1100 hPa
Accuracy ±3 hPa
Resolution 0.1 hPa
Reaction time 1 s
General technical data
Dimensions 610 x 610 mm (Standard hood)
Operating temperature -5 to +50 °C
Storage temperature -20 to +60 °C
Battery type Alkali manganese, mignon, type AA
Display size 3.5"
Interface Micro-USB; Bluetooth® 4.0 wireless technology
Memory 2 GB (internal)
Get A Free Quote / Need a Help ? Contact Us