Temperature probe testo 0613 1712 NTC, air sensor, -50 to 125°C

The testo 0613 1712 NTC air temperature probe is a compact sensor for measuring air temperature in HVAC, refrigeration and environmental monitoring applications. Designed to operate across a range of -50 to 125°C, the probe delivers stable readings for ducts, rooms and enclosures when used with compatible testo instruments. Its small form factor and robust sensing element make it suitable for continuous monitoring and diagnostic checks in technical installations.

Advantages

The probe provides accurate NTC-based temperature measurement over a wide temperature range, ensuring reliable data for both low-temperature and high-temperature environments. Its compact design facilitates easy installation in tight spaces such as ducts and cabinets. Compatibility with testo instruments allows straightforward integration into existing measurement workflows without the need for calibration changes when used as intended. The sensor’s construction supports repeatable readings for routine inspections and trend analysis.

Suitable for

• HVAC system diagnostics and commissioning
• Refrigeration monitoring and temperature verification
• Room and enclosure temperature measurements
• Environmental monitoring in laboratories and technical rooms

Key specifications

• Temperature measurement range: -50 to 125°C
• Sensing element: NTC thermistor
• Application: air temperature measurement in ducts, rooms and enclosures
• Form factor: compact probe suitable for confined spaces
• Compatibility: for use with testo instruments that accept this probe type

How to use

Connect the probe to a compatible testo instrument according to the instrument’s input instructions and secure the sensor in the measurement location, avoiding direct contact with heat sources or water. For duct measurements, position the probe centrally in the airstream where possible to obtain representative values. Allow the sensor time to equilibrate to the air temperature before recording values or performing diagnostics. Follow the host instrument’s menu to select temperature measurement and, if available, configure averaging or logging functions to suit the measurement task.

Usage recommendations

Handle the probe by the cable or housing and avoid bending the sensor tip sharply. For long-term installations, periodically inspect the probe for contamination or damage and clean gently if necessary. Store the probe in a dry environment when not in use and refer to the testo instrument manual for recommended calibration intervals.