The 0.5 to 4.5V level sensor uses a voltage signal to represent the level . 

This voltage signal is proportional to the supply voltage, therefore the output is a percentage of the supply voltage. 

This type of level sensor is ideal for Raspberry Pi , Arduino and Embedded systems.

View the 0.5 to 4.5Vpressure sensor Article post for examples and further information on 0.5 to 4.5Voutput.

Therefore integration is simplified by avoiding complex analogue circuitry.

0.5 to 4.5V Level sensor Output Example

for example a 0.5 to 4.5V Level sensor with a range of 0-1mwg r and the supply

0.5 to 4.5Voutput if supply voltage is 5V

0Bar = 0.5V = 10%

1mwg=4.5V =90%

Ratiometric output if Supply voltage is 3V

0 Bar = 0.3V = 10%

1mwg  = 2.7V=90%

0.5 to 4.5V Level Range

• 0-30mWG

0.5 to 4.5V Level transducer overview