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Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts, at ventilation outlets and in work rooms
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Space-saving: combine the universal Bluetooth handle with the humidity/temperature probe head or extendable telescope (1.0 m). Vane probe heads (Ø 16 mm, Ø 100 mm) can simply be plugged onto the telescope
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Convenient: wireless probes, internal data storage and USB port for data export
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As multifaceted as your challenges themselves: the testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes
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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
Differential pressure (internal sensor) - Piezoresistive Measuring range
-150 to +150 hPa
Accuracy
±0,05 hPa (0 to 1,00 hPa)
±0,2 hPa + 1,5 % of mv
(1,01 to +150 hPa)
Resolution
0,01 hPa
General technical data Weight
250 g
Dimensions
154 x 65 x 32 mm
Operating temperature
-20 to +50 °C
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 differential pressure (internal), 1 x Temperature TC Type K
Product colour
black/orange
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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General technical data Storage temperature
-20 to +60 °C
Weight
360 g
Dimensions
375 x 105 x 46 mm
Operating temperature
-5 to +50 °C
Probe head diameter
100 mm
Product colour
black/orange
Battery type
4 x type AA batteries
Battery life
60 h
Data transfer
Bluetooth®
Radio range
20 m
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
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
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Temperature - NTC Measuring range
-10 to +70 °C
Accuracy
±1,8 °C
Resolution
0,1 °C
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
Weight
60 g
Dimensions
245 x 16 x 16 mm
Operating temperature
-10 to +70 °C
Length probe shaft
230 mm
Diameter probe shaft
16 mm
Probe head diameter
16 mm
Product colour
Black
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Temperature - NTC Measuring range
-20 to +70 °C
Accuracy
±0,5 °C
Resolution
0,1 °C
Humidity - Capacitive Measuring range
0 to 100 %RH
Accuracy
±2 %RH (5 to 90 %RH)
±0,03 %RH/K (k=1)
long-term stability: ±1 %RH / year
Resolution
0,1 %RH
General technical data Storage temperature
-20 to +70 °C
Weight
30 g
Dimensions
160 x 28 x 28 mm
Operating temperature
-20 to +70 °C
Diameter probe shaft
12 mm
Length probe shaft
140 mm
Product colour
Black
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General technical data Weight
155 g
Dimensions
telescope: 375 x 17 x 16 mm
angle: 65 x 65 x 15 mm
Operating temperature
-5 to +50 °C
Length telescope
1 000 mm
Diameter telescope
12 mm
Product colour
Black
Storage temperature
-20 to +60 °C
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General technical data Weight
1400 g
Dimensions
516 x 135 x 256 mm
Product colour
Black
