Testo 400 is the universal measuring instrument for all IAQ professionals. Measure, analyze and document all IAQ and comfort level parameters using just one instrument beneficially, simply and in agreement considering the standards.
High-environment measuring technology, intuitive measurement assistants, versatile documentation options and a whole selection of IAQ probes make the testo 400 the unqualified belt for your daylight-to-hours of day produce an effect.
Key Features: Testo 400 Universal IAQ instrument
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Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55
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High-precision, location-independent and integrated differential pressure sensor
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Measure all IAQ-related parameters – with our wide range of probes for all IAQ measurements
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Document measuring values directly on the customer's site and send them by e-mail, or further analyze them using the testo DataControl PC software
Specifications: Testo 400 Universal IAQ instrument
| Temperature - NTC |
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Measuring range
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-40 to +150 °C
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Accuracy
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±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)
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Resolution
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0.1 °C
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| Temperature - TC Type K (NiCr-Ni) |
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Measuring range
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-200 to +1370 °C
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Accuracy
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±(0.3 °C + 0.1 % of mv) ±1 Digit
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Resolution
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0.1 °C
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| Differential pressure (internal sensor) - Piezoresistive |
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Measuring range
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-100 to +200 hPa
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Accuracy
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±(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)
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Resolution
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0.001 hPa
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| Absolute Pressure (internal sensor and external probe) |
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Measuring range
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700 to 1100 hPa
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Accuracy
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±3 hPa
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Resolution
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0.1 hPa
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| General technical data |
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Weight
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510 g (instrument)
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Dimensions
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210 x 95 x 39 mm ((LxWxH))
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Operating temperature
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-5 to +45 °C
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Product-/housing material
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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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-20 to +60 °C
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