What is the Accuracy of IRD8800 Speed Monitoring Module M88900?

What is the Accuracy of IRD8800 Speed Monitoring Module M88900?

The Accuracy of IRD8800 Speed Monitoring Module is +/- 60 RPM for speeds upto 6,000 RPM. If the Full scale is greater than 6,000 RPM and is any value upto 99,999 RPM - then the accuracy is +/- 1% of Full Scale. Same applies in Hz readout - if the speed is upto 100 Hz - then the accuracy is +/- 1 Hz and if the speed is greater than 100 Hz and any value upto 1,666 Hz - then the accuracy is +/- 1% of Full Scale