V automat & instruments supplies wireless process instruments. The wireless process instruments are now giving plant engineers unprecedented access to plant data previously unavailable or unattainable with wired sensors. It represents a significant cost saving, particularly for parameter monitoring and provides a quickly implemented, secure link from the process plant areas to the control room. Advances in digital technology have made large-scale installations of wireless process instruments practical and increasingly common. These large scale wireless process instruments installations can network and link to scada systems distributed control systems [dcs] or operate independently. The wireless instruments developed by v automat are being used to measure various process parameters like level, pressure, temperature, flow, etc. The specially designed electronic circuit can also operate pumps and control valves through a remote place without using any wires. The instruments are reliable, easy to use, compact and robust. These instruments can operate at license-free frequency of 2.4 ghz. Frequency hopping spread spectrum [fhss] technology reduces the chances of interference of radio signals.