The testo 400 is the universal measuring instrument for all TAB / Commissioning and IAQ professionals. Measure, analyze and document Air flow, air pressure, IAQ and comfort level parameters using just one instrument – simply, conveniently and in compliance with the standards. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of air flow, comfort and IAQ probes make the testo 400 the perfect partner for your day-to-day work.
Features:
- High-precision, location-independent and integrated differential pressure sensor meeting the NEBB Instrument requirements for Air pressure
- Integrated absolute pressure sensor
- Measures all IAQ-related parameters: Flow, temperature, humidity, pressure, illuminance, radiant heat, turbulence, CO2 and CO
- Numerous connection options for probes: 2 x cable probes (TUC), 4 x Bluetooth® probes, 2 x type K thermocouple probes
- Compatible with a wide range of available Bluetooth® and cable probes – so you’ll be equipped for any measuring task
- For high-precision measurements and less downtime: Adjustment function at up to six measuring points for zero-error display, probe heads can be replaced without restarting the IAQ measuring instrument, high-quality probes with an intelligent calibration concept (probe calibration independent of the measuring instrument)
- Long-term monitoring of the indoor air quality: Order the IAQ data logger for carrying out long-term measurements with the testo 400 IAQ measuring instrument. While the stand-alone data logger is carrying out the IAQ measurement, you can use the IAQ measuring instrument for measurements elsewhere
Optional Probes (Call for pricing):
- Comfort probes
- Humidity probes
- Pitot tubes
- Pressure probe
- Temperature probes
- Velocity probes
| Temperature - NTC |
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Measuring range
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-40.0° to 302.0 °F / -40 to +150 °C
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Accuracy
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±0.4 °F ±1 Digit (-13° to 166.8 °F) / ±0.2 °C ±1 Digit (-25 to +74.9 °C)
±0.7 °F ±1 Digit (-40° to -13.2 °F) / ±0.4 °C ±1 Digit (-40 to -25.1 °C)
±0.7 °F ±1 Digit (75° to 211.8 °F) / ±0.4 °C ±1 Digit (+75 to +99.9 °C)
±0.5 % of mv ±1 Digit (Remaining Range)
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Resolution
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0 °F / 0.1 °C
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| Temperature - Type K TC |
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Measuring range
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-328.0° to 2498.0 °F / -200 to +1370 °C
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Accuracy
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±(0.5 °F + 0.1 % of mv) ±1 Digit / ±(0.3 °C + 0.1 % of mv) ±1 Digit
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Resolution
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0.1 °F / 0.1 °C
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| Differential pressure (internal sensor) - Piezoresistive |
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Measuring range
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0 to +80 InH₂O / 0 to +200 hPa
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Accuracy
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±(0.0 InH₂O + 1 % of mv) ±1 Digit (0 to 25 InH₂O) / ±(0.3 Pa + 1 % of mv) ±1 Digit (0 to 25 hPa)
±(0.0 InH₂O + 1.5 % of mv) ±1 Digit (10.000 to 80 InH₂O) / ±(0.1 hPa + 1.5 % of mv) ±1 Digit (25.001 to 200 hPa)
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Resolution
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0.000 InH₂O / 0.001 hPa
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| Absolute Pressure (internal sensor and external probe) |
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Measuring range
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280 to 440 InH₂O / 700 to 1100 hPa
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Accuracy
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±1 InH₂O / ±3 hPa
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Resolution
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0.1 InH₂O / 0.1 hPa
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| General technical data |
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Weight
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17.99 oz. (instrument) / 510 g (instrument)
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Dimensions
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8.3 x 3.7 x 1.5 in. ((LxWxH)) / 210 x 95 x 39 mm ((LxWxH))
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Operating temperature
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23.0° to 113.0 °F / -5 to +45 °C
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Housing
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Plastic
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Protection class
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IP40
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Connectable probes
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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
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Product colour
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black/orange
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Camera image size
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Main camera: 8.0 MP; Front camera: 5.0 MP
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Battery life
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approx. 10 hrs continuous operation
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Display type
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5.0" touch display, HD 1280*720 pixels, IPS (160 k)
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Power supply
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Rechargeable li-ion battery (5550 mAh)
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Interface
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Bluetooth®; USB; WLAN
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Memory
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2 GB; 1,000,000 measuring values
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Storage temperature
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-4.0° to 140.0 °F / -20 to +60 °C
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- testo 400 universal instrument (0560 0400)
- Transport case for air flow measurement (0516 1400)
- Power supply with USB cable (0554 1106)
- testo DataControl software
- Calibration protocol
