The Testo 440 dP speed and indoor air quality measuring instrument allows for quick and easy air speed and air quality measurements. Ideal for measuring air volume, determining the degree of turbulence and detecting mould
Testo 440 dP speed and indoor air quality measuring device:
- Accurate and reliable in ducts and air outlets
- Performs turbulence measurements in accordance with EN ISO 7730 / ASHRAE 55 standards
- A wide range of connecting probes is available: hot wire and paddle probes (Ø 16 mm) are suitable for duct measurements and large paddle probes (Ø 100 mm) are suitable for air/air vent systems
- Automatically calculates the air volume: by entering the cross-sectional dimensions or area of the duct, the air volume measurement value is calculated
- Takes measurements in extra-large channels: a telescope with a hot-wire and paddle probe (Ø 16 mm) can reach lengths up to 2 metres
- Takes measurements without the need for a ladder: by attaching a paddle probe (Ø 100 mm) with a retractable telescope, lengths of up to 2 metres are achieved. Also, the vane probe can be folded up to 90°
- Determines the direction of flow (in or out) in the ventilation grille – using a vane probe, hoods and an airflow straightener
- Starts or stops measurement, saves data at the touch of a button
- Attaches to magnetic surfaces with magnets on the back of the device
- Performs long-term monitoring of indoor air quality
TECHNICAL SPECIFICATION:
Temperature – NTC:
Measuring range: -40 to +50 °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 (Type K (NiCr-Ni)):
Measuring range: -200 to +1370 °C
Accuracy: ±0,3 °C
Resolution: 0.1 °C
General parameters
Dimensions: 154 x 65 x 32 mm
Weight: 250 g
Battery type: 3 AA mignon 1.5 V
Battery life: 12 h
Storage temperature: -20 to +50 °C
Operating temperature: -20 to +50 °C
DELIVERY SCOPE: Testo 440 dP air velocity and IAQ measuring instrument including integrated differential pressure sensor, connection hose, 3 x AA batteries, USB cable and calibration protocol.
PRODUCT CODE: 0560 4402
