VIBMIL11NV4CAI, VIBMIL11PV4CAI, VIBMIL21NV4CAI, VIBMIL21PV4CAI. VIBMIL Milli-Con — is a vibration sensor designed for continuous monitoring of vibration levels in industrial environments. It is current loop powered accelerometer and delivers accurate vibration RMS velocity using a 4-20 mA output. The VIBMIL is supplied with inbuilt NTC or PT100 temperature sensors.