How much is a capacitive sensor?

How much is a capacitive sensor? Value Line Capacitive Sensors Model # Output Function Low profile, Reverse polarity, LED indicator, Protection degree: IP67, Temperature range: -25 to +70°C, Prices starting as low as $39.00 each C36PU15NS NPN, NO+NC C36PU15PS PNP, NO+NC What are the disadvantages of capacitive sensor? Following are Read more…