AC Motor Parameter Measurement The main functions of this system is monitoring data about load voltage, load current, AC Frequency , Motor Vibration, Temperature and Humidity of AC motor using a custom build MQTT sensor tag using Arduino and the following sensors (ZMPT101B AC single phase voltage sensor module, custom built AC mains frequency sensor, 100A SCT-013-000 Non- invasive AC Current Clamp Sensor, DHT11 (Temperature and humidity sensor), ADXL335 3-Axis Analog Output Accelerometer Module Angular Transducer both Amplitude and Frequency ) . The system sends parameters using MQTT IOT MQTT Gateway Using Raspberry pi . Raspberry Pi gateways sends MQTT messages for further processing using any of the following as per client requirement AWS IOT /Node-RED/IBM Maximo/ Thingworx etc…