Thermometers for Asphalt Testing: Dial, Digital and Infrared

Select an asphalt thermometer for the measurement location, temperature and required accuracy. Contact probes and infrared instruments are not interchangeable; follow the specified testing procedure.

Contact Dial Thermometers

The MA-123 asphalt/concrete dial thermometer has a listed range of 0–550°F, a 2in dial and an 8in stem. Check insertion depth and the required reading procedure.

Digital Probe Thermometers

The Taylor 9841RB pocket digital thermometer has a listed range of −40–500°F (−40–260°C) and a 4.75in stainless steel stem. Confirm accuracy and sample suitability at the intended temperature.

Infrared Surface Thermometers

The MA-384 dual-laser infrared thermometer has a listed range of −76–1,832°F (−60–1,000°C). An asphalt temperature gun provides a surface reading, not an internal mix temperature.

Check emissivity, target size and measurement distance. Maximum temperature alone does not establish test-method suitability.

Before Ordering

Check the instrument’s range, accuracy, probe or optical specifications, and calibration-document requirements. If a traceable calibration certificate is required, verify that the selected model includes the required documentation.