That s a different thing entirely.
Voltage level sensors.
This sensor can determine the ac or dc voltage level.
A voltage sensor circuit is a circuit that can sense the voltage input into it.
Voltagewatch sensors identify undervoltage or overvoltage concerns and help protect critical motors and electronics.
The long probe transmits a low voltage the second shorter probe is cut so the tip is at the switching point.
Simply put two metallic probes of different lengths one long one short insert into a tank.
If the voltage reaches a certain threshold then an indicator such as an led will turn on.
The input of this sensor can be the voltage whereas the output is the switches analog voltage signal a current signal an audible signal etc.
Conductive level sensors use a low voltage current limited power source applied across separate electrodes.
Voltage sensors can determine both the ac voltage or dc voltage level.
The input of this sensor can be the voltage whereas the output is the switches analog voltage signal a current signal an audible signal etc.
The power supply is matched to the conductivity of the liquid with higher voltage versions designed to operate in less conductive higher resistance mediums.
This is not a voltmeter circuit where we know or are measuring the amount of voltage input into it.
Conductive sensors are used for point level sensing conductive liquids such as water and highly corrosive liquids.