Patent ID: 8594969

Claim:
An appliance or machine monitoring system, comprising: a monitor and transmitter unit configured to monitor an operation cycle of an appliance or machine and transmit a wireless signal upon completion of the operation cycle, the monitor and transmitter unit includes: an operation cycle sensor, the operation cycle sensor generates signals based upon operation status of the appliance or machine, a signal conditioner, the signal conditioner receives and modifies signals generated by the operation cycle sensor, a comparator, the comparator compares amplitude of the modified signals with a predetermined amplitude trip point, the comparator generates a signal once the amplitude of the modified signal falls below the predetermined amplitude trip point for a predetermined time period to indicate completion of the operation cycle of the appliance or machine being monitored, a wireless transmitter broadcasting a wireless signal based upon the signal generated by the comparator; and a portable receiver and alert unit configured to receive signals generated by the wireless transmitter and generate a signal indicative of completion of the operation cycle of the appliance or machine.