VIBRO-METER / MEASUREMENT ENGINEERING TQ403 111-403-000-013 Proximity Transducer Non-contact eddy-current sensing for rotating machinery shaft displacement, relative vibration and gap measurement. COMPLETE ORDERING CONFIGURATION A1-B1-C036-D000-E100-F1-G098-H10 The Vibro-Meter TQ403 is a non-contact proximity transducer designed for calibrated eddy-current measurement chains. It measures the relative displacement between its sensing tip and a metallic target for rotating