This Testo 915i Smart Probe delivers quick, reliable air temperature readings straight to your smartphone, making duct and ambient temperature checks a breeze. It's a solid tool for any tech needing to quickly log conditions in air conditioning systems or across a room. I've used gear like this on hot roof installs; being able to see temps remotely saves a lot of back and forth, especially when you're troubleshooting airflow.

The wireless operation via Bluetooth and compatibility with standard Type K thermocouples mean it's versatile enough for most common HVAC/R temperature applications in Australia, from residential split systems to commercial air handlers.

Best For

• HVAC/R service and maintenance technicians
• Installers checking duct temperatures and air outlets
• Commissioning and balancing professionals
• Facility managers monitoring ambient conditions

Compatibility

The Testo 915i works seamlessly with your smartphone or tablet (iOS 13.0+ / Android 8.0+ with Bluetooth 4.2) via the free Testo Smart App. It also connects automatically to compatible Testo measuring instruments like the Testo 400 and Testo 550s. The handle accepts the included robust Type K air probe, and importantly, it's compatible with all standard Type K thermocouple probes, giving you flexibility to use your existing Testo or other brand Type K probes. It's noted to be A2L/A3 refrigerant compatible for general area use.

If you're running a different model or an older phone, check fittings and specs before ordering.

Features

• Wireless Connectivity: Automatic Bluetooth connection to your smartphone, tablet, or other Testo instruments with a range up to 100 metres.
• Wide Measurement Range: The included Type K air probe accurately measures from -50 °C to +400 °C, suitable for diverse applications.
• Universal Probe Port: Handle is compatible with the included air probe and any other standard Type K thermocouple probes, boosting versatility.
• Testo Smart App Integration: Easily view readings, analyse temperature curves graphically, and create / send documentation (PDF/CSV) directly from the job site.
• Robust Design: Handy and durable housing, designed for the rigours of daily trade use, plus an innovative locking mechanism for secure probe attachment.
• Long Battery Life: Powered by 3 x AAA batteries, providing approximately 150 hours of operation to keep you working longer.

Technical Specifications

What's in the Box

• 1 x Testo 915i Wireless Smart Probe (SKU 0563 3915)
• 1 x Robust, fast-response Air Probe (TC Type K)
• 3 x AAA Batteries
• 1 x Calibration Protocol

Using It on the Job

1. Power Up: Insert the included AAA batteries into the Testo 915i handle.
2. Attach Probe: Securely plug the air temperature probe into the handle's innovative locking mechanism.
3. Connect Smart App: Download the free Testo Smart App on your iOS or Android device. The 915i will automatically connect via Bluetooth.
4. Position Probe: Place the air probe in the desired location – a duct, at an air outlet, or in the ambient space. Ensure good airflow around the probe tip for accurate readings.
5. Monitor & Document: View live temperature data, track trends, and create measurement reports (PDF/CSV) directly from the app.
6. Pack Away: After use, detach the probe and store the unit in a suitable case, like the Testo Smart Case for Temperature, to protect it from job site knocks.

Limitations & Safety Notes

• Ensure your smartphone or tablet meets the minimum system requirements for the Testo Smart App (iOS 13.0+, Android 8.0+, Bluetooth 4.2).
• The air probe is designed for air temperature measurements; use immersion or surface probes for other applications.
• Operating temperature range for the handle is -20 to +50 °C; avoid extreme heat or cold beyond these limits.
• Protection class IP20 means it's not water-resistant; keep it dry.

Tradie Pro Tip

When checking duct temperatures, always position the probe in the centre of the airflow for the most accurate reading, away from duct walls that might skew results. If you're using it for ambient conditions, keep it out of direct sunlight or off hot surfaces.

Pair With

For a complete Testo Smart Probe kit, consider adding a Testo Smart Case (Temperature) to keep your gear organised and protected, or explore other Testo Smart Probes like a pipe clamp probe for surface temperature measurements.