Eurotherm  -  1/4, 1/8th, 1/16th, &1/32nd DIN PID, Multiloop + PLC CAL CONTROLS - 1/16th, 1/32nd DIN PID, Multiloop + PLC CARLO GAVAZZI - Energy Management controls, position controls and limits GEFRAN - Controls, Interfaces, and SCRs HONEYWELL - Full line of PID Process Controls +PLC INDEECO CONTROLS - Custom control solutions (formerly Solitech) MOORE INDUSTRIES - 1/4 DIN and 1/8th DIN Process Controls NORCROSS - The most extensive range of process viscosity controls... WEST INSTRUMENTS - Full line of DIN sized Process controls and systems