NO WIRES
DIN rail-mount Series SCD temperature/process controller offers multiple PID loops in a compact size. Each SCD master controller can be combined with up to seven SCD slave controllers without any wires. Each controller has one universal input, one relay output and one user selected output. The outputs can be used for dual loop control to control heating and cooling or a single loop with an alarm. Dwyer Instruments; 219/879-8000; www.dwyer-inst.com