TESTO
TESTO 425 Hot-Wire Thermal Anemometer Data Logger
TESTO 425 Hot-Wire Thermal Anemometer Data Logger
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TESTO 425 Hot-Wire Thermal Anemometer | Smart Air Flow Meter
The Professional's Choice for HVAC & Duct Measurement in Sri Lanka
The TESTO 425 is a compact and precise hot-wire thermal anemometer engineered for fast and easy air velocity and temperature measurements within ventilation ducts. Featuring a permanently connected telescopic probe, this thermal air flow meter is the go-to instrument for HVAC technicians, system installers, and building consultants in Sri Lanka who require reliable data for air balancing and system commissioning. Its ability to calculate volume flow makes it a comprehensive tool for professional diagnostics.
Powered by German engineering, the TESTO 425 integrates seamlessly with the Testo Smart App, transforming your smartphone into a second display and a powerful data controller. This smart functionality allows for effortless configuration, graphing, documentation, and on-site reporting. For accurate, efficient, and smart air velocity analysis in any HVAC system, the TESTO 425 sets the industry standard.
Key Features of this Hot-Wire Anemometer
- Smart App Integration for Advanced Workflow
- Connect wirelessly to the Testo Smart App on your smartphone or tablet. Use the app for remote instrument configuration, live data display, and measurement graphing for real-time analysis.
- Mobile Data Logger & On-Site Reporting
- Use the Testo Smart App as a powerful data logger to store measurement values. You can then add comments and photos, and instantly create professional PDF reports to email directly from the job site.
- Fixed Telescopic Probe for In-Duct Measurement
- The permanently attached probe extends up to 820 mm, allowing for easy and stable measurements deep inside air ducts and at hard-to-reach ventilation grilles.
- Accurate Flow & Temperature Measurement
- The sensitive hot-wire sensor delivers highly accurate readings of air velocity, even at low flow rates. It also measures air temperature simultaneously, providing comprehensive environmental data.
- Timed & Multi-Point Mean Value Calculation
- Effortlessly determines the average volume flow (CFM/CMM) by calculating the mean value from multiple measurement points or over a specific time period, crucial for accurate duct traverse analysis.
- Compact & Robust for Professional Field Use
- Designed for the demands of fieldwork, this compact instrument features a rugged housing and an intuitive interface, ensuring durability and ease of use on any job site.
Common Applications
This professional air flow meter is essential for:
- In-Duct & Ventilation Outlet Measurement
- Ideal for performing precise measurements inside ventilation ducts to ensure HVAC systems are balanced correctly and operating at peak efficiency.
- HVAC System Commissioning & Maintenance
- Verify that newly installed ventilation systems meet design specifications and perform routine checks to maintain optimal performance and indoor air quality.
- Indoor Air Quality (IAQ) Assessment
- Assess the flow rate of fresh air in indoor spaces such as offices, classrooms, and industrial workplaces to ensure a healthy and comfortable environment.
Technical Specifications for the Air Flow Meter
- Product Name
- TESTO 425 Hot-Wire Thermal Anemometer
- Air Velocity Range
- 0 to 30 m/s
- Air Temperature Range
- -20 to +70 °C
- Volume Flow Calculation
- Yes (CFM/CMM) with timed/multi-point averaging
- Probe
- Fixed telescopic hot-wire probe, extendable to 820 mm
- Interface
- Bluetooth for Testo Smart App (Data logging & reporting)
- Power Source
- 3 x AA batteries
- Dimensions
- 135 x 60 x 28 mm
What's in the Box?
- 1 x TESTO 425 Hot-Wire Anemometer with Fixed Probe
- 1 x Transport Bag
- 1 x Calibration Protocol
- 3 x AA Batteries
- 1 x English User Manual
Downloads
š Download TESTO 425 Data Sheet
š Download TESTO 425 User Manual
