N20K48 Novus PID Process Controller 12-24v - Bluetooth, 1 relay, 1 pulse outputNovus Modular PID Process Controller Base unit Relay & Pulse Output, 12 24v power supply, model N20K48, expandable modular design. Other inputs and output available upon request such a analogue and digital options. Global innovation product from NOVUS, available at Under Control Instruments, we are proud to release the N20K48 controller family. Its new and consistent concept is based on a compact, powerful core controller plus a growing family of