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Standard-compliant determination of the volume flow in ducts using grid measurements as per EN ISO 12599 and ASHRAE 111
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Determination of the volume flow at outlets by measuring the reference pressure and entering the manufacturer-specific K-factor
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Smart, intuitive measurement programs, complete your measurement with full documentation on site at the customer’s premises or carry out further analysis using the testo DataControl measurement data management and analysis software
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In the kit: testo 400 universal IAQ instrument, hot wire probe (with Bluetooth® handle and telescope), vane probe head (Ø 100 mm), high-precision humidity/temperature probe head, 90° angle, case
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Temperature - NTC Measuring range
-40 to +150 °C
Accuracy
±0.2 °C ±1 Digit (-25 to +74.9 °C)
±0.4 °C ±1 Digit (-40 to -25.1 °C)
±0.4 °C ±1 Digit (+75 to +99.9 °C)
±0.5 % of mv ±1 Digit (Remaining Range)
Resolution
0.1 °C
Temperature - TC Type K (NiCr-Ni) Measuring range
-200 to +1370 °C
Accuracy
±(0.3 °C + 0.1 % of mv) ±1 Digit
Resolution
0.1 °C
Differential pressure (internal sensor) - Piezoresistive Measuring range
0 to +200 hPa
Accuracy
±(0.3 Pa + 1 % of mv) ±1 Digit (0 to 25 hPa)
±(0.1 hPa + 1.5 % of mv) ±1 Digit (25.001 to 200 hPa)
Resolution
0.001 hPa
Absolute Pressure (internal sensor and external probe) Measuring range
700 to 1100 hPa
Accuracy
±3 hPa
Resolution
0.1 hPa
General technical data Weight
510 g (instrument)
Dimensions
210 x 95 x 39 mm ((LxWxH))
Operating temperature
-5 to +45 °C
Product-/housing material
Plastic
Protection class
IP40
Connectable probes
4 x digital Bluetooth® probe or testo Smart Probe; 2 x digital probe with fixed cable or temperature probe NTC with fixed cable (via Testo Universal Connector - TUC); 2 x temperature probe TC type K with fixed cable
Product colour
black/orange
Camera image size
Main camera: 8.0 MP; Front camera: 5.0 MP
Battery life
approx. 10 hrs continuous operation
Display type
5.0" touch display, HD 1280*720 pixels, IPS (160 k)
Power supply
Rechargeable li-ion battery (5550 mAh)
Interface
Bluetooth®; USB; WLAN
Memory
2 GB; 1,000,000 measuring values
Storage temperature
-20 to +60 °C
*TUC connection (Testo Universal Connector): For the connection of fixed cable digital probes and NTC probes.
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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
Humidity - Capacitive Measuring range
5 to 95 %RH
Accuracy
±3 %RH (10 to 35 %RH)
±2 %RH (35 to 65 %RH)
±3 %RH (65 to 90 %RH)
±5 %RH (Remaining Range)
±0.06 %RH/K (k=1)
long-term stability: ±1 %RH / year
Hysteresis: ±1.0 %RH
Resolution
0.1 %RH
Absolute Pressure Measuring range
+700 to +1100 hPa
Accuracy
±3.0 hPa
Resolution
0.1 hPa
Velocity - Hot wire Measuring range
0 to 50 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 +60 °C
Weight
400 g
Dimensions
780 x 50 x 40 mm
Operating temperature
-5 to +50 °C
Length telescope
1,000 mm
Probe head diameter
9 mm
Diameter telescope
16 mm
Product colour
black/orange
Diameter probe shaft
9 mm
Length probe shaft
230 mm
Battery life
21.5 h
Battery type
4 x type AA batteries
Data transfer
Bluetooth®
Radio range
20 m
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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
General technical data Storage temperature
-20 to +70 °C
Weight
125 g
Dimensions
180 x 105 x 46 mm
Operating temperature
-20 to +70 °C
Probe head diameter
100 mm
Product colour
Black
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Temperature - NTC Measuring range
-20 to +70 °C
Accuracy
±0.3 °C (+15 to +30 °C)
±0.5 °C (Remaining Range)
Resolution
0.01 °C
Humidity - Capacitive Measuring range
0 to 100 %RH
Accuracy
±(0.6 %RH + 0.7 % of mv) (0 to 90 %RH)
±(1.0 %RH + 0.7 % of mv) (90 to 100 %RH)
±0.03 %RH/K (k=1)
long-term stability: ±1 %RH / year
Hysteresis: ±0.4 %RH
Resolution
0.01 %RH
General technical data Storage temperature
-20 to +70 °C
Weight
20 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
25 g
Dimensions
65 x 65 x 15 mm
Product colour
Black
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General technical data Weight
2800 g
Dimensions
520 x 410 x 160 mm LxWxH
Product-/housing material
Plastic
Product colour
Black