Jofra RTC-158 is an advanced dry-block reference temperature calibrator. It combines a liquid bath and a large diameter insert, and is designed to calibrate odd sizes and shaped sensors or multiple sensors at once. The RTC-158 covers a temperature range of -22 °C to 155 °C (-8 °F to 311 °F). It offers intelligent sensors for plug-and-play connectivity, an easy-to-read full-color 5.7-in. VGA display, and a USB connection.