"AUTONICS PRDL18-14DP Sensor, Inductive Prox, 18mm Round Long, Non Shielded, 14mm Sensing, PNP, NO, 3 Wire, 10-30 VDC. Product Features High reliablity and long distance sensing with dedicated 1.5~2 times longer sensing distance guaranteed comoared to existing models (4mm~25mm) Superior noise resistance Leakage current under 0.6mA residual voltage under 3.5V Cable support adopted sturdy sensor/ cable connecting part( 9 times unorived fkexural strength)"