This project deals with the measurement of water level in a tank using capacitance. The level of water in the tank will be displayed on our cell phone by using a Bluetooth module in an Arduino circuit. When the water level exceeds the highest level, a buzzer starts ringing to alert us of rising water levels. This prevents overflowing in tanks in industries. Accurate control of the level of material in a tank, reactor, or other vessel is important in many process applications especially, in the bulk material handling industry. One of the main purposes of the level measurement system is to measure inventory. In order to achieve good control, accurate measurement is a must.