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Re: Best Capacitive Proximity Sensor for Glass Sheet on PCB Heater? - 9 years ago

Hi just wanted to add my experiences with NPN since there's a lot of mixed messages about it. If it's NPN you don't need any resistors, just plug the black wire directly in to signal even if probe is running on 12V. I did a lot of googling about this and could'nt find any definitive answer to this but in the end I just went for it and it worked. I was reading 11.5V when sensor wasn't triggered a