Testo 915i with TC Probe

A. Product Overview

The Testo 915i with TC Immersion Probe is a smartphone-operated wireless thermometer for professional temperature measurement. It consists of a Testo 915i Bluetooth handle and a plug-in Type K immersion and penetration probe.

The pointed probe tip allows it to be inserted into soft and semi-solid materials, while the stainless steel probe shaft can be immersed in liquids. This makes the instrument suitable for checking temperatures in water, oils, chemical solutions, food products, pastes and similar materials.

Temperature readings are displayed on a smartphone or tablet through the free Testo Smart App. The app can present current values, display temperature curves, store measurement information and create reports that can be shared as PDF or CSV files.

Main Features

• Product model: Testo 915i
• Order number: 0563 1915
• Sensor type: Type K thermocouple
• Measurement range: minus 50 to 400°C
• Resolution: 0.1°C
• Response time: approximately three seconds
• Probe length: 115 mm
• Probe shaft diameter: 5 mm
• Probe tip diameter: 3 mm
• Bluetooth range: up to 100 metres under suitable conditions
• Battery type: three AAA batteries
• Approximate battery life: 150 hours
• Probe protection class: IP40
• Automatic Bluetooth connection
• Compatible with the Testo Smart App
• Includes batteries and a calibration protocol

The handle also supports other standard Testo 915i probes and commonly available Type K thermocouple probes, providing flexibility for different temperature measurement applications.

B. Working Principle

The Testo 915i uses a Type K thermocouple sensor to measure temperature.

When the immersion probe is placed inside a liquid or inserted into a soft material, the two dissimilar metals inside the thermocouple generate a small electrical voltage. This voltage changes according to the temperature at the probe tip.

The Testo 915i handle processes this signal and converts it into a temperature reading. The measurement is then transmitted wirelessly through Bluetooth to the Testo Smart App installed on a compatible smartphone or tablet.

The measurement process works as follows:

1. Connect the Type K immersion and penetration probe securely to the Testo 915i handle.
2. Switch on the instrument and open the Testo Smart App.
3. The instrument automatically establishes a Bluetooth connection.
4. Immerse the probe in a liquid or insert it into the material being tested.
5. Wait for the displayed reading to stabilise.
6. View, record and analyse the temperature through the app.
7. Create a measurement report with readings, photographs and comments when required.

The probe-locking mechanism helps prevent accidental disconnection during use.

C. Why It Is Used

The Testo 915i is used when technicians need fast, portable and digitally documented temperature measurements.

Accurate Temperature Measurement

The Type K immersion probe provides reliable measurements across a wide temperature range, making it suitable for both low-temperature and high-temperature applications.

Wireless Operation

The measurement value is displayed on a smartphone or tablet instead of a conventional instrument screen. This allows the user to view readings from a convenient distance.

Fast Response

The immersion and penetration probe has an approximate response time of three seconds, helping technicians complete multiple measurements efficiently.

Measurement Documentation

The Testo Smart App can store readings, display temperature graphs and prepare digital reports. Reports can be sent as PDF or CSV files, reducing manual recording work.

Flexible Probe Compatibility

The Testo 915i handle is compatible with several plug-in probe types, including immersion, penetration, air, surface and flexible probes. It can also work with commonly available Type K thermocouple probes.

Convenient Field Use

Its compact size, wireless connectivity and long battery life make it practical for field service, inspection, commissioning, maintenance and quality-control work.

D. Suitable Buyers

The Testo 915i with TC immersion probe is suitable for:

• HVAC and refrigeration service technicians
• Industrial maintenance engineers
• Food processing and catering professionals
• Quality-control departments
• Laboratory technicians
• Pharmaceutical production facilities
• Chemical and process industries
• Equipment commissioning engineers
• Facility management teams
• Heating system technicians
• Manufacturing plants
• Temperature calibration and testing professionals
• Technical training institutes
• Industrial instrumentation suppliers
• Service contractors who require digital temperature reports

It is particularly useful for buyers who need smartphone-based temperature measurement, Bluetooth data transmission and digital reporting.

Frequently Asked Questions

1. What is the temperature range of the Testo 915i with immersion probe?

The supplied Type K immersion and penetration probe measures temperatures from minus 50 to 400°C.

2. What is the order number of this Testo 915i model?

The order number for the Testo 915i with immersion and penetration probe is 0563 1915.

3. Which type of temperature sensor does it use?

It uses a Type K thermocouple sensor.

4. Can the Testo 915i measure liquid temperature?

Yes. The supplied probe is designed for immersion measurements in liquids such as water, oils and suitable process fluids.

5. Can the probe be used for penetration measurements?

Yes. Its pointed probe tip allows temperature measurement inside pastes, soft materials and semi-solid products.

6. How quickly does the probe respond?

The immersion and penetration probe has an approximate response time of three seconds under specified measurement conditions.

7. Does the Testo 915i have its own display?

The measurement value is primarily displayed through the Testo Smart App on a compatible smartphone or tablet.

8. What is the Bluetooth range?

The Bluetooth connection range is up to 100 metres under suitable environmental and operating conditions.

9. Is the Testo Smart App free?

Yes. The Testo Smart App is available as a free download for compatible Android and iOS devices.

10. What can be done through the Testo Smart App?

The app can display live temperature readings, show graphical temperature curves, record measurement data, add photographs and comments, create reports and share files in PDF or CSV format.

11. Can other probes be connected to the Testo 915i?

Yes. The handle supports the standard Testo 915i plug-in probes and other commonly available Type K thermocouple probes with a compatible connection.

12. Is the probe securely attached to the handle?

Yes. The Testo 915i uses a locking mechanism to provide secure attachment of its standard plug-in probes.

13. What batteries does the Testo 915i use?

It operates using three AAA batteries.

14. What is the approximate battery life?

The specified battery life is approximately 150 hours at 25°C with a one-second measurement cycle.

15. Does the product include a calibration certificate?

The standard package includes a calibration protocol. Separate ISO and DAkkS calibration certificates may be available as optional accessories.

16. Is the Testo 915i suitable for industrial use?

Yes. It is suitable for industrial maintenance, process monitoring, HVAC servicing, laboratory work, quality control and general professional temperature measurement.

17. Can the Testo 915i generate downloadable reports?

Yes. Measurement reports can be created through the Testo Smart App and exported as PDF or CSV files.

18. What is included with the Testo 915i order number 0563 1915?

The package includes the Testo 915i wireless Smart Probe handle, Type K immersion and penetration probe, batteries and calibration protocol.