... Relay, SSR,RS485 output .CE,ROH KH130 Digital baragraph PID process controller, Temperature controllerFeatures SMT technology, advanced Modular Structure, flexible ... Method: On-off, PID, PID self-tuningHeat, Cool for temperature: default is heat, adjustable.Control Time : 1-240SProportional ... indicator, level meter, level controller, bargraph indicator KH130 Digital Bargraph PID Process Controller