Frequently Asked Question

Is an air gap between sensor PCB and covering material allowed?

No air gap is allowed between the sensor PCB and the covering material or case of the product. Less of the electric field extends above the covering material when there is an air gap, and the field dissipates in air. These combine to decrease the sensor response. Also, the covering material may bend on contact, and the user may interfere with more or less of the electric field than before. This results in a non linear response from the sensor. These two effects combine to give an unpredictable response from sensor. We recommend 3M 467MP double-sided tape or similar to glue or tape the sensor PCB to covering plastic.