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Specifications
The Testo 549i is a compact wireless high-pressure gauge designed for servicing, installation, and troubleshooting air-conditioning and refrigeration systems. It connects to a smartphone or tablet through Bluetooth and is operated using the testo Smart App. Its 45° connector allows the instrument to be attached directly to the pressure connection.
The testo Smart App displays measurement data as tables or diagrams and can automatically calculate evaporation and condensation temperatures. Measurement reports can also be sent directly as PDF or Excel files.
Key Features
- Wireless high-pressure and low-pressure measurement
- Smartphone/tablet operation via testo Smart App
- 45° connector for convenient access to pressure connections
- Bluetooth range up to 350 ft
- No hoses required, helping minimize refrigerant loss
- Automatic calculation of evaporation and condensation temperatures
- Measurement data displayed as tables or diagrams
- Reports can be exported as PDF or Excel
- Can be used with the testo 115i clamp thermometer for additional refrigeration-system calculations
- Suitable for air conditioning, refrigeration, and heat-pump servicing
- Supports CFC, HFC, HCFC, N, H₂O and CO₂ pressure media
| Specification | Testo 549i |
|---|---|
| Product Type | Wireless High-Pressure Gauge |
| Order Number | 0560 2549 03 |
| Measurement | High and Low Pressure |
| Measuring Range | -15 to +870 psi / -1 to +60 bar |
| Accuracy | ±0.5% of full-scale value |
| Resolution | 0.01 psi / 0.01 bar |
| Probe Connection | 7/16 in. - UNF |
| Overload (High Pressure) | +943 psi / +65 bar |
| Bluetooth Range | Up to 350 ft |
| Dimensions | 125 × 32 × 31 mm |
| Weight | 156.6 g |
| Operating Temperature | -20 to +50 °C |
| Storage Temperature | -20 to +60 °C |
| Housing | Plastic |
| Product Colour | Black / Orange |
| Battery | 3 × AAA |
| Battery Life | 150 hours |
| Pressure Media | CFC, HFC, HCFC, N, H₂O, CO₂ |
| App | testo Smart App |
| Connectivity | Bluetooth |
| Included | Testo 549i, batteries, test protocol |
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