Testo 115i Wireless Pipe Clamp Thermometer — Superheat, Subcooling & Flow/Return Temperatures
The Testo 115i is a wireless pipe clamp thermometer from the Testo Smart Probes range, designed for measuring pipe temperatures in refrigeration and air conditioning systems. It connects to your smartphone or tablet via Bluetooth and the testo Smart Probes App, allowing you to monitor flow and return temperatures, calculate superheating and subcooling, and view graphical temperature change data — all from your mobile device.
The 115i is particularly useful when measuring temperatures at widely spaced points — the wireless connection means you don’t need to stand at the instrument to read the display. When used with the Testo 549i pressure measuring instrument, individual refrigeration system parameters can also be calculated in the app.
Confirm current testo Smart Probes App compatibility with your smartphone OS version before ordering. Confirm pipe diameter compatibility and all specifications against the Testo 115i datasheet for your specific application. Refrigerant system work requires appropriate trade qualifications — confirm licensing requirements in your state or territory.
Key Features
- Pipe clamp design for direct pipe surface temperature measurement
- Measuring range: -50°C to +150°C
- Rapid detection of temperature changes via graphical progress display in the app
- Wireless Bluetooth connection to testo Smart Probes App
- Measure flow and return temperatures of heating and refrigeration systems
- Calculate superheating and subcooling in refrigeration systems
- Use at widely spaced measuring points without standing at the instrument
- View data as chart or table — export as PDF or Excel via email
- Calibration protocol included
- 2-year warranty
What’s Included
- Testo 115i pipe clamp thermometer smart probe
- Batteries
- Calibration protocol
App Requirements
- iOS 8.3 or later
- Android 4.3 or later
- Bluetooth 4.0
Confirm current app compatibility with your device and OS version before ordering.
Best For
- HVAC/R technicians measuring suction line and liquid line temperatures for superheat and subcooling calculations
- Measuring flow and return temperatures on heating and refrigeration systems
- Applications where measuring points are widely spaced and wireless monitoring is an advantage
- Technicians who want wireless pipe temperature data with smartphone reporting
Check Before Ordering
- Confirm pipe diameter compatibility against the Testo 115i datasheet before ordering
- Confirm testo Smart Probes App compatibility with your smartphone OS version
- Refrigerant system work requires appropriate trade qualifications — confirm licensing requirements in your state or territory
- Warranty: 2 years — confirm current terms at time of purchase
Frequently Asked Questions
What pipe sizes does the Testo 115i fit?
Confirm pipe diameter compatibility against the Testo 115i manufacturer’s current datasheet before ordering.
Can the 115i calculate superheat and subcooling?
Yes — when used with the Testo 549i pressure measuring instrument, the testo Smart Probes App can calculate refrigeration system parameters including superheating and subcooling. Confirm current app functionality against the Testo datasheet.
What app does the Testo 115i use?
The testo Smart Probes App, available for iOS and Android. Confirm current compatibility with your device and OS version before ordering.
What is the warranty?
2 years. Confirm current terms with HVAC Trade Supply at time of purchase.
Browse the full Testo Smart Probes range or contact our team for advice.