Belt drive monitoring system

A belt drive monitoring system comprising:

• a driver;
• a driven;
• the driver and driven connected by an endless member;
• a first plurality of magnetic members having a magnetic field attached to the driver at a first radius from an axis of rotation of the driver with a first predetermined spacing;
• a second plurality of magnetic members having a magnetic field attached to the driven at a second radius from an axis of rotation of the driven with a second predetermined spacing;
• a first sensor disposed to detect a changing magnetic field caused by passage of the first plurality of magnetic members;
• a second sensor disposed to detect a changing magnetic field caused by passage of the second plurality of magnetic members;
• a first transmitter configured to wirelessly transmit to a receiver a first data signal from the first sensor and a second transmitter configured to wirelessly transmit to the receiver a second data signal from the second sensor;
• and
• the receiver configured to manipulate the first date signal and the second data signal whereby a system parameter is calculated and provided to a user.