SD Series Temperature Control

Watlow SD Series Temperature Control

The Watlow SD Series is a family of PID temperature controllers used to regulate process temperature across industrial equipment. The series spans multiple panel-mount form factors, including 1/32 DIN, 1/16 DIN, 1/8 DIN, and 1/4 DIN configurations, allowing selection based on available panel space and application requirements.

Products in the Series

The lineup includes both horizontal and vertical 1/8 DIN models, along with 1/4 DIN units offering options such as dual outputs and TRU-TUNE+ adaptive control. The series also includes a limit control variant with dual display and relay output. All products in this series are manufactured by Watlow.

• 1/32 DIN — SD3 Series PID controller
• 1/16 DIN — SD6 Series PID controller
• 1/8 DIN — SD8 vertical and SD9 horizontal PID controllers
• 1/4 DIN — SD4 Series PID controllers, including dual-output and TRU-TUNE+ models