Speed Monitor Relay, 5333.001, 508789/3, Rheintacho

Safety Relay, PSR-SCP 24 DC-ESD-5X1-1X2-300, Phoenix

Safety Speed Monitor Module, PNOZ ms2p, Pilz Germany

Safety Relay Speed Monitor, PNOZ s30, 751330, Pilz Germany

Monitoring Relay, K8AB-TH11S, Omron, Made in Japan

Flow Controller, YSC02-2, YSC, YPC Electronics

Speed Controller with Base, SRB01, SPG, Made in Korea

Speed Controller with Base, SRB03, SUNGSHIN, Korea