Wireless Petroleum Level Sensor using RF Communication


Level sensing from remote place is useful application in many industries. This project is designed to monitor the level of petroleum tank from a remote place.

Four Reed Switches are connected to the RF Encoder. These reed switches are placed on the container from outside. This encoded data is transmitted through a RF transmitter module. In the receiver side, the RF receiver module receives the encoded data and decodes using an RF Decoder. This decoded output data is given to transistor drivers. Relays are driven using these transistor drivers. Up to 7A load can be connected to these loads.

In this project 433 MHz RF transmitter and receiver modules are used. These are ideal for remote control applications where low cost and longer range is required. The transmitter operates from a1.5-12V supply, making it ideal for battery-powered applications. The transmitter employs a SAW-stabilized oscillator, ensuring accurate frequency control for best range performance.  The manufacturing-friendly SIP style package and low-cost make the STT-433 suitable for high volume applications.

This project uses regulated 5V, 750mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/18V step down transformer.



Block diagram



  1. Highly sensitive
  2. Very low noise
  3. Low cost and reliable circuit
  4. Can transmit up to 10 meter
  5. LED Visual In-diction


  1. Petroleum Process Stations
  2. Industrial Applications
  3. Fuel Filling Stations






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2 Responses to “Wireless Petroleum Level Sensor using RF Communication”

  1. shirisha says:

    reference books or reference sites for wireless petroleum level sensor using RF communication

  2. Raviya Begum says:

    i want ppt and documentation on the topic ” Wireless Petroleum Level Sensor using RF Communication.”

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