The Fieldpiece ST4 Dual-Input Type-K Temperature Meter measures two temperatures simultaneously using the included Type-K wrap tab beaded thermocouples. The technology inside the ST4 provides advanced temperature compensation in rapidly changing environments commonly found while performing field service. Use the ST4 to find Delta T and just about any temperature split wanted to be measured. The unit displays T1, T2, and T1-T2 in big numbers on the LCD screen. Each thermocouple jack features two front-facing calibration pots for easy and accurate calibration.

When used with the optional ATWB1 Wet Bulb Thermocouple (not included), the unit can find target superheat. With the array of Fieldpiece Pipe Clamp Thermocouples (not included), the unit can aid in checking for blocked dryer filters. Designed for HVAC/R applications, the ST4 measures two temperatures and calculates the difference in English or metric units. The unit offers technicians all the benefits of a digital thermometer in a heavy-duty design.

Due to the technology employed inside the ST4, the meter offers superior temperature compensation in rapidly changing environments commonly found while performing field service. Meters with thermocouple adapters often take a long time to stabilize due to transfer of ambient heat. The ST4 instead stabilizes rapidly so that users can take it from the rooftop to the walk-in and still receive fast and accurate readings.

The rugged rubber boot protects against the impact of accidental drops and offers users a more comfortable grip in their hands. The hanging bag with the magnetic hanger offers hands-free testing so the user is free to work on the rest of their call on the job.