The present invention relates to methods and systems for monitoring operational cycles of one or more appliances, such as washers and dryers, and remotely indicating when such operating cycles have terminated. In one aspect, the present invention provides an appliance or machine monitoring system. The system includes 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, a signal conditioner, a comparator, and a wireless transmitter broadcasting a wireless signal based upon the signal generated by the comparator. The system further includes a portable receiver and alert unit configured to receive signals generated by the wireless transmitter and generate a signal indicative of completion of an operation cycle of an appliance or machine.