A sensing assembly senses angular speed and position of a device that rotates about an axis of rotation. Said bagless vacuum cleaner system generally comprises a dustcup assembly, a handle assembly and a motor intake adaptor. The first and second reciprocating piston compression units receive flow from the first and second intake manifolds, respectively. The probe is then excited in situ and the temperature measured. An operating member is movably attached to the second sidewall of the bracket and connectable to the fastener.