IRD306 (earlier known as MIL 306M) is an Analog Vibration Meter manufactured by IRD Mechanalysis in India. It measures industrial machinery vibration amplitude in terms of Displacement (microns) and Velocity (mm/sec) – thereby covering most machinery faults. This rugged and proven portable vibration meter has been in use worldwide for over 45 plus years now. Over time, its circuitry has been enhanced to ensure stability, accuracy and the highest reliability. Supplied with the high temperature IRD544 inductive velocity sensor, it can also be used for balancing machine rotors applying the ‘Three Point Balancing Method’.