High-Pressure Gauge Testo 549i Operate able via Smartphone

The Testo 549i is a compact, wireless high-pressure gauge designed for HVAC professionals to easily monitor and service air conditioning and refrigeration systems using their smartphone or tablet. With direct attachment to the system’s pressure connection, the 549i eliminates the need for hoses, thereby minimizing refrigerant loss and offering a clean and efficient measuring process. It’s ideal for servicing, troubleshooting, and installing systems, especially when pressure connections are spaced far apart.

In combination with the Testo Smart App, users can wirelessly monitor system pressure readings in real time and calculate evaporation and condensation temperatures instantly. Measurement data can be displayed in either tabular or graphical format and exported conveniently as PDF or Excel files for documentation. The 549i also works with the Testo 115i clamp thermometer for extended analysis and parameter calculations across refrigeration circuits.

The device features a robust plastic housing and operates within a wide pressure range of -1 to +60 bar, with high accuracy and resolution. It’s built for modern workflows, offering Bluetooth 4.2 connectivity with a range of up to 100 meters and is compatible with iOS 13.0+ and Android 8.0+ devices.

Technical specifications:
• Measuring range: -1 to +60 bar
• Accuracy: ±0.5 % of full-scale value
• Resolution: 0.01 bar
• Overload protection: up to 65 bar
• Connection type: 7/16″ – UNF
• Pressure media: CFC, HFC, HCFC, N, H₂O, CO₂
• Data transfer: Bluetooth (100 m range)
• Battery life: 130 hours (3 AAA micro batteries)
• Operating temperature: -20 to +50 °C
• Storage temperature: -20 to +60 °C
• Dimensions: 125 x 32 x 31 mm
• Weight: 156.6 g
• System requirements: iOS 13.0 or newer, Android 8.0 or newer, Bluetooth 4.2

Delivered with batteries and calibration protocol, the Testo 549i offers unmatched flexibility, precision, and convenience for pressure measurement in mobile HVAC applications.