Azure IoT Suite predictive maintenance solution makes use of Azure machine learning to predict the remaining useful life of the sensor. It uses the sensor's telemetry data to train the algorithm and then make use of it. Using a web service the algorithm takes the input and can provide an output which is as shown on the dashboard.

The following screenshot shows the Azure machine learning algorithm used in this predictive maintenance solution:

This algorithm automatically gets deployed when we create the predictive maintenance solution.