Overview: Uninterrupted Power for Your Testo Instruments

Engineered to keep your crucial testing equipment running continuously, this robust plug-in power supply delivers a reliable 5 VDC (500 mA) output. It is the perfect solution for long-term data logging, instrument charging, and uninterrupted performance across a wide range of Testo measuring devices.

Equipped with a standard Mini-B USB connection, this versatile mains unit features a broad 100-240 VAC input voltage range. This ensures your compatible Testo instruments—such as the 435, 570, 635, or 735 series—never run out of power mid-test, whether in the workshop or on-site.

Why Reliable Power Matters for HVAC Professionals

In the demanding world of HVAC, precision and continuity are paramount. A sudden power loss during a critical measurement can not only compromise data integrity but also lead to costly delays. This Testo power supply ensures your diagnostic tools remain fully operational, allowing you to complete tasks efficiently and accurately without concerns about battery life or power fluctuations.

What's Included

• 1x Testo Plug-in Power Supply (0554 0447): Delivers a stable 5 VDC, 500 mA output.
• 1x European Adapter Plug: For broad international compatibility and convenience.

Key Features & Professional Benefits

• ✓ Universal Compatibility: Features a standard Mini-B USB connection, making it suitable for a wide array of Testo measuring devices.
• ✓ Global Readiness: Broad 100-240 VAC input voltage range with an included European adapter ensures seamless operation across different regions and power grids.
• ✓ Stable Power Output: Provides a consistent 5 VDC, 500 mA, safeguarding your instruments from power surges and ensuring efficient charging.
• ✓ Uninterrupted Operation: Ideal for prolonged data logging and continuous measurements, preventing downtime and data loss due to depleted batteries.
• ✓ Cost-Effective: Extends the lifespan of your instrument batteries by providing a reliable mains power alternative.

Versatile Applications in HVAC and Beyond

• Charging and powering Testo 435, 556, 560, 570, 635, 735 series instruments.
• Long-term data logging for temperature, humidity, pressure, and flow in HVAC systems.
• Continuous monitoring in critical environments, ensuring uninterrupted data collection.
• Workshop bench testing and calibration where consistent power is essential.
• International field service and maintenance, leveraging the multi-voltage input and adapter.

Tradie Pro Tip

Performing a 24-hour long-term measurement? Don't rely solely on battery power! Plug your instrument directly into the wall using this adapter to guarantee continuous operation. It automatically conserves your battery life, ensuring you never lose valuable logging data due to a sudden power drop!

Detailed Technical Specifications

Electrical Data

General Data & Compatibility

Pair With These HVAC Shop Essentials

• Testo 570 Digital Manifold: Ensure your manifold system is always charged and ready for complex refrigeration measurements.
• Testo 435 Multi-Function Meter: Keep your multi-function meter powered for extended air velocity, temperature, and humidity analyses.
• Testo Data Loggers: Essential for powering any Testo data logger during long-term monitoring campaigns, securing your critical data.

Maintain Peak Performance with HVAC Shop

Don't let power issues hinder your productivity. Invest in the Testo Power Supply with European Adapter from HVAC Shop and guarantee your valuable Testo instruments are always ready for action. Browse our full range of Testo accessories and keep your toolkit fully operational and efficient.