TL-N20ME2 20mm NPN NC prism shape Inductive proximity sensor OB83 Feature: DC Type:NPN NC Detection distance 20mm ± 10% Set distance 0—17mm Lag distance Less than 10% of detection distance Detect object Magnetic metal (detection distance decreases when non-magnetic metal) Standard detection object Iron 50*50*1mm Response frequency DC:0.5kHz AC:25Hz Voltage DC type: DC12-24V (6-36V) pulsation (P-P) below 10%,