Testo 480,humidity&air velocity mesuring

Testo 480

Manufacturer: Testo
Model: 480

The Testo 480 features a built-in, high-precision differential pressure sensor, suitable for applications such as Pitot tube measurements, filter checks, and cleanroom monitoring. Its wide range of compatible probes allows measurement of the following parameters:

Air velocity and air volume (e.g., for fume hood testing)

Temperature

Relative humidity

Differential and absolute pressure

CO₂ concentration

Illuminance

PMV/PPD (comfort index)

Radiant heat

Turbulence intensity

WBGT index (heat stress)

The instrument can be customized with various optional probes and accessories (e.g., a wireless printer for on-site reporting).
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Technical Specifications

Temperature Measurement
Pt100 Sensor

Measuring range: –100…+400 °C

Resolution: 0.01 °C

TC Type K (NiCr-Ni) Sensor

Measuring range: –200…+1370 °C

Accuracy: ±(0.3 °C + 0.1% of measured value)

Resolution: 0.1 °C

Relative Humidity (Capacitive Sensor)

Measuring range: 0…100 %RH

Resolution: 0.1 %RH

Air Velocity – Vane Anemometer

Ø 16 mm: 0.6…50 m/s | Resolution: 0.1 m/s

Ø 100 mm: 0.1…15 m/s | Resolution: 0.01 m/s

Air Velocity – Hot-wire Sensor

Measuring range: 0…20 m/s

Resolution: 0.01 m/s

CO₂ Concentration (Ambient Air)

Measuring range: 0…10,000 ppm

Resolution: 1 ppm

Comfort Level Measurement

Measuring range: 0…5 m/s

Resolution: 0.01 m/s

Differential Pressure – Built-in Piezoresistive Sensor

Measuring range: –100…+100 hPa

Accuracy:

0…25 hPa: ±(0.3 Pa + 1% of measured value)

25.001…100 hPa: ±(0.1 hPa + 1.5% of measured value)

Resolution: 0.001 hPa

Illuminance

Measuring range: 0…100,000 Lux

Resolution: 1 Lux

Absolute Pressure (Internal or External Probe)

Measuring range: 700…1100 hPa

Accuracy: ±3 hPa

Resolution: 0.1 hPa

General Technical Data

Weight: 435 g

Operating temperature: 0…+40 °C

Storage temperature: –20…+60 °C

Protection class: IP30

Connectable probes: 2 x TC Type K, 1 x differential pressure (internal), 3 x digital probes

Compliance: Directive 2004/108/EC

Battery life: approx. 17 hours (at 50% display brightness, without probes)

Display: Color graphic display

Power supply: Built-in rechargeable battery, mains charger for long-term measurements

Data transfer: USB cable or SD card

Memory capacity: 60,000,000 measured values