There are both contact and contactless sensors with several different measuring techniques, such as potentiometer, inductive and magnetic contactless. Output signal is analog potentiometer / 0,5-4,5 / 0-10 VDC or 4 – 20 mA, or digital.
- Opkon ELPC and ELPT conductive linear potentiometers with built-in amplifiers and 0-10 V or 4..20 mA outputs
- Supply voltage 12-30 Vdc
- Measuring range 40-500 mm
- Model with amplifier is priced competitively and is not much more expensive than a regular potentiometer