Testo 420 Volume Flow Hood
The Testo 420 Volume Flow Hood offers a lightweight, precise, and convenient solution for managing volume flows at large air intakes and outlets. Designed to enhance efficiency in ventilation and air conditioning systems, this instrument is essential for maintaining hygienic Indoor Air Quality standards in diverse environments such as industrial settings, office spaces, and cleanrooms.
Equipped with a flow straightener, the Testo 420 minimises common measurement errors, especially at swirl outlets, ensuring accurate readings. Weighing under 2.9 kg and featuring ergonomic handles, it allows for easy tilting and removal, making the readout of measurement values more comfortable. Additionally, its compatibility with mobile devices via a free iOS/Android Bluetooth App enables remote control and on-site report finalisation and submission.
The comprehensive package includes the Testo 420 Flow Hood with a 610mm x 610mm measuring instrument, tension rods, a USB cable, batteries, and a carry case with a trolley. With a robust battery life of 30 hours and a bright dot matrix display, this device ensures reliable performance under various conditions. The Testo 420 is an indispensable tool for professionals seeking accuracy and efficiency in air quality management.
Key Features
- Lightweight design under 2.9 kg
- Ergonomic handles for easy manoeuvrability
- Flow straightener reduces measurement errors
- Mobile compatibility with iOS/Android Bluetooth App
- Efficient volume flow regulation at large air intakes and outlets
- Suitable for industrial, office, and cleanroom environments
- On-site report finalisation and submission via app
- 30-hour battery life with Type AA batteries
- Bright dot matrix display with illumination
- Comprehensive package including carry case with trolley
Technical Specifications
- Volume Flow Measuring Range: 40 to 4000 m³/h
- Accuracy ±1 Digit: ±3 % of m.v. +12 m³/h at +22 °C, 1013 hPa
- Resolution: 1 m³/h
- NTC Measuring Range: -20 to +70 °C
- NTC Accuracy ±1 Digit: ±0.5 °C (0 to +70 °C), ±0.8 °C (-20 to 0 °C)
- NTC Resolution: 0.1 °C
- Capacitive Humidity Sensor Measuring Range: 0 to 100 %RH
- Humidity Sensor Accuracy ±1 Digit: ±1.8 %RH +3 % of m.v. at +25 °C
- Humidity Sensor Resolution: 0.1 %RH
- Differential Pressure Sensor Measuring Range: 0 to 120 Pa
- Differential Pressure Sensor Accuracy ±1 Digit: ±2 % of m.v. +0.05 Pa
- Differential Pressure Sensor Resolution: 0.001 Pa
- Operating Temperature: -5 to +60 °C
- Storage Temperature: -20 to +60 °C
- Memory: 2 GB internal
- Interface: Micro USB
- Warranty: 2 years
