Flow rate measuring device testo 420 set

• Ref. no.: 0563 4200
• For volume flow measurement in large air outlets
• Integrated flow rectifier for ceiling diffusers
• Bluetooth with app connection
• USB interface
• Operating temperature: -20°C to +50°C
• Battery type: Mignon/AA (included)
• Display: dot matrix with lighting
• Memory: 2 GB internal
• Interface: micro-USB
• Weight 2.9 kg
• Delivery contents:
- testo 420
- Measuring hood 610 x 610 mm
- USB cable
- Trolley

Flow rate:
• Measurement range: - 40 ... 4000m³/h
• Accuracy: ± 1 digit ± 3% of m.v. +12 m³/h at +22ºC, 1013 hPa (85 ... 3500 m³/h)
• Resolution: 1 m³/h

Temperature:
• Measurement range: -20ºC to +70ºC
• Accuracy: ±0.5ºC (0 to +7ºC), ±0.8ºC (-20ºC to 0ºC)
• Resolution: 0.1 ºC

Humidity:
• Measurement range: 0 to 100% rel. humidity
• Accuracy: ±1.8 %rH + 3% of m.v. at +25ºC (5 to 80 %rH)
• Resolution: 0.1 %rH

Differential pressure:
• Measurement range: 0 to 120 Pa
• Accuracy: ±2 % of m.v. + 0.05 Pa
• Resolution: 0.001 Pa