These compact professional temperature measuring devices operated by smartphone are perfectly equipped for the most important temperature measurements in heating, air conditioning, ventilation and refrigeration. Depending on the application, you can choose from four different measuring instruments for smart temperature measurements.
Bluetooth thermometer
NEW: testo 915i – wireless Smart Probe with plug-in temperature probes
- Wireless temperature measurement with smartphone operation in various applications
- Precise, fast-reaction and robust plug-in temperature probes (TC Type K, Class 1) with measuring range up to -50 to +400 °C
- Secure attachment of the plug-in Testo measurement probes thanks to new locking mechanism; compatible with common TC probes Type K
- Easy operation, evaluation and documentation with cost-free testo Smart App
- Automatic Bluetooth connection to smartphones, tablets or Testo measuring instruments with a range of up to 100 m
- High measurement accuracy thanks to system calibration ex-works
NEW: testo 915i temperature kit – smart and versatile H4>
We recommend this smartphone thermometer
testo 915i
with flexible temperature probe
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Wireless Smart Probe testo 915i with flexible temperature probe (TC Type K, Class 1), incl. batteries and calibration protocol
testo 915i
with air temperature probe
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Wireless Smart Probe testo 915i with air temperature probe (TC Type K, Class 1), incl. batteries and calibration protocol
testo 915i with
immersion/penetration probe
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Wireless Smart Probe testo 915i with immersion/penetration probe (TC Type K, Class 1), incl. batteries and calibration protocol
testo 915i
with surface probe
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Wireless Smart Probe testo 915i with surface probe (TC Type K, Class 1), incl. batteries and calibration protocol
More Smart probes for smart temperature measurement
testo 115i – clamp thermometer operated by smartphone H3>

For servicing air conditioning and refrigeration systems and measuring flow and return temperatures.
testo 805i – infrared thermometer operated by smartphone H3>

For the non-contact measurement of wall, fuse and component temperatures in air conditioning systems