Testo 549i Wireless Pressure Smart Probe
by Testo
Last updated Mar 29, 2026 · 2 revisions
Compact wireless refrigeration pressure probe with 350-foot Bluetooth range, -15 to 870 PSI range, and hose-free Schrader connection.
Highlights
Capabilities
Media
www.testo.com
About This Product
The Testo 549i connects directly to Schrader valves without hoses, eliminating refrigerant loss during measurement. Measures -15 to +870 PSI with 0.5% full-scale accuracy and 0.01 PSI resolution, transmitting wirelessly via Bluetooth up to 350 feet. 150-hour battery life on 3 AAA batteries, -4 to 122F operating range. Works with Testo Smart App and MeasureQuick for automatic superheat/subcooling calculations and job documentation.
Capabilities
How this product is delivered and what's included out of the box.
- Mobile app
- Available
- Free trial
- No
- Free tier
- No
- Public API
- No
- Deployment
- On Premise
FSH Score Breakdown
Ease of Use 7.0
Features 7.5
Support 5.0
Value 5.5
Integrations 3.5
AI Capabilities 1.5
Features
42 features confirmed across
6categories· Showing confirmed capabilities only
Hardware Features15features
Angled Probe Connection45° angled probe connection for easier mountingAdjustable Alarm Setpoints and LatchingDetachable Probe Tips for Accessory Head CompatibilityHoseless Measurement for Low Refrigerant LossSupports Combination of Two Probes Within a Single TransmitterIndividual Smart Probes can be combined with one another for a variety of applicationsRechargeable BatteryLong battery lifeIntegrated Magnets90° foldable probe and built-in magnets for grille attachment on Testo 605iPositive and Negative Pressure MeasurementHose-less pressure measurement
Show 7 more
Multi-Measurement ModesSimultaneous measurement of up to six Smart ProbesIntegrated Magnets for Mounting on Equipment CabinetQuick-Change ProbesSensor LongevityTouchscreen DisplayAutomatic Probe DetectionAutomatic probe detectionIntegrated Differential Pressure SensorIntegrated differential pressure sensor
Compliance & Safety10features
Superheat/Subcool CalcAutomatic superheat and sub-cooling calculationsAirflow CalculationsRefrigerant CalculationsAutomatic calculation of evaporation and condensation temperaturesReal-Time Subcooling and Superheat MonitoringAutomatic superheat and sub-cooling calculation with 115i probeDetermination of Overheating, Pressure Drop Testing, and EvacuationLow-loss refrigerant pressure testingA2L Refrigerant ComplianceHose-less measurement with low refrigerant lossRefrigerant Pressure And Temperature CorrelationsMeasures high-side or low-side refrigerant pressureRefrigerant ManagementHose-less refrigerant measurement
Show 2 more
Vacuum TestingGraphical visualization of vacuum levelsTurbulence And Draft Risk CalculationTurbulence calculation per EN ISO 7730 / ASHRAE 55
Reporting & Analytics6features
ReportingPDF and Excel report generationAnalyticsData visualization via diagram or tablePdf And Excel Report GenerationReport generation and export as PDF or ExcelGraph and Table Data VisualizationData display as instrument readings, tables, or graphs in the appAudit Report GenerationAutomated Data Logging
Equipment & Asset Management6features
Bluetooth Connectivity To Control BoardsReal-Time System Data MonitoringRemote MonitoringReal-time data streamingAlertsCritical value alarms with vibrationLong-Term Environmental MeasurementSelf-Diagnostic Mode
Mobile & Field Tools4features
Multi-Tool Simultaneous ConnectionSimultaneous connection of up to six Smart ProbesGraphical Vacuum Status DisplayDocumentation via Testo Smart AppRemote measurement display on smart device via appLive Stream DataReal-time data streaming
Platform & Customization1feature
Data ExportMeasurement data reporting as PDF or Excel
Pricing
- Model
- Custom
- Starting at
- Contact for pricing
