M2B+, M2B Plus Temperature Control

M2B+ / M2B Plus Temperature Control Series

The M2B+ (also known as M2B Plus) series consists of programmable temperature controllers manufactured by Sterling Inc. for chiller systems and process temperature control. These digital controllers regulate both heating and cooling, operating across a wide range from -30°F to 650°F depending on configuration, with narrower ranges such as 0–250°F available on certain models.

Designed for industrial cooling and thermal management, the series is used in process chillers, hot oil systems, HVAC systems, and manufacturing equipment requiring precise temperature control. Controllers in this family feature digital displays for setpoint and process temperature, programmable setpoints, and relay, triac, or analog (4–20 mA) outputs for heating and cooling equipment.

Products in This Series

The series includes temperature control panels and complete control assemblies, offered in several configurations and revisions. Some assemblies are supplied with output boards, and models vary by temperature range and output type. All products share the M2B+ control platform.