IRD811 Analog Vibration Meter uses a 100 mV/g IEPE type 2 Pin Accelerometer (like IRD521). IRD811 can therefore be used (Interchangeable) with any 100 mV/g +/- 10% IEPE type 2 Pin Accerelometer of any make (like CTC, Wilcoxon Research, Hansford, Monitran, etc.)

IRD811 Analog Vibration Meter is a Portable Handheld Instrument and is Battery Powered. It requires 2 x 9V Drycell batteries to Power On. It has a Battery Test Switch Position that indicates Battery Health