Sensor basics · 6 min
What is an Inductive Proximity Sensor?
An inductive proximity sensor is a non-contact device that detects metal objects using an electromagnetic field. It is the most widely used sensor in industrial automation,…
Sensor basics · 6 min
What is a Capacitive Proximity Sensor?
A capacitive proximity sensor is a non-contact device that detects both metallic and non-metallic objects by sensing a change in capacitance. Where an inductive sensor sees…
Sensor basics · 5 min
What is an Analog Proximity Sensor?
An analog proximity sensor does not simply report "object detected" or "not detected" the way a normal digital sensor does. Instead it provides a continuous output signal —…
Selection guide · 7 min
PNP vs NPN Proximity Sensors: How to Choose
PNP or NPN is the question we are asked most often, and getting it wrong means a sensor that does nothing when you wire it up. The distinction is simple once you see it: PNP…
Selection guide · 6 min
Inductive vs Capacitive Sensors: Which Should You Use?
Inductive and capacitive proximity sensors look nearly identical and mount the same way, but they detect by completely different physics — and that difference decides which…
Selection guide · 8 min
How to Choose a Proximity Sensor: A Practical Checklist
Most sensor problems are specification problems, not quality problems. Work through these seven questions before you order and the sensor you receive will do the job first…
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