testo 549i, High-Pressure measuring instrument
- Measurement of high and low pressure
- Low refrigerant loss – since no hoses are required for measurements
- Measurement data displayed in the form of a graph or table, and sent via testo Smart App
- Problem-free application at measuring points that are a long distance apart thanks to Bluetooth® range up to 100 m
Internal Reference :
0560 2549 02Description
The testo 549i is a professional-grade high pressure gauge designed to make HVAC/R system maintenance faster and more reliable. As a wireless digital pressure gauge, it eliminates the need for bulky hoses, significantly reducing refrigerant loss during service calls. This compact pressure measuring instrument connects directly to the pressure connection, providing precise readings for both high and low-pressure sides of a system.
By syncing with the testo Smart App via Bluetooth, you can view real-time data on your smartphone from up to 100 meters away. Whether you are calculating evaporation temperatures or troubleshooting a complex cooling system, this tool provides clear data in graphs or tables for easy analysis. If you are looking for a durable and efficient high pressure gauge that simplifies your workflow and provides instant digital reports, the testo 549i is the ideal solution for modern technicians.
More measuring convenience thanks to the App
Readings can be viewed conveniently on your terminal device via the testo Smart App. In addition, the App enables automatic calculation of evaporation and condensation temperatures. All measurement data are presented either as a diagram or a table. Finally, the measurement data report can be e-mailed directly as a pdf or Excel file.
Delivery Scope
1 x testo 549i high-pressure gauge operated via smartphone, including batteries and calibration protocol.
Frequently Asked Questions
The testo 549i is a digital pressure gauge that offers superior precision and convenience. Unlike analog versions, it connects directly to the pressure port without the need for hoses, which significantly reduces refrigerant loss. It also eliminates manual calculations by automatically providing readings through the testo Smart App.
Yes, the testo 549i is a versatile pressure measuring instrument suitable for both high and low-pressure sides of air conditioning and refrigeration systems. For simultaneous monitoring of both sides, many technicians prefer using two testo 549i units together.
The 2nd generation testo 549i features an extended Bluetooth range of up to 100 meters (350 feet). This allows you to monitor system performance remotely on your smartphone or tablet, making it much easier to service large systems or units in hard-to-reach locations.
The testo 549i is compatible with over 90 common refrigerants, including CFC, HFC, HCFC, N, H2O, and CO2. The list of refrigerants is automatically updated via the testo Smart App to ensure you always have the most current data for your calculations.
When used in combination with a testo 115i pipe-clamp thermometer, the testo 549i allows the Smart App to automatically calculate superheating and subcooling. This makes it an essential tool for accurate system charging and troubleshooting.
Each testo 549i high pressure gauge comes ready for use with three AAA batteries and a calibration protocol to ensure accuracy right out of the box.
| General technical data | |
|---|---|
| Weight | 156.6 g |
| Operating temperature | -20 to +50 °C |
| Product-/housing material | Plastic |
| Battery type | 3 AAA micro batteries |
| Data transfer | Bluetooth® |
| Pressure Measurement | |
| Measuring range pressure | -1 to 60 bar |
| Accuracy pressure | ±0.25 % fs |
| Resolution pressure | 0.01 bar |
| Probe connection | 7 / 16 " - UNF |
| Overload rel. (high pressure) | +65 bar |