Azbil FL7M DC 2-Wire Regular Cylindrical Proximity Switch is available in Polarity Preleaded, Quick Lock and No-polarity models. Sensing distance is 2 mm to 10 mm depending on the size. Polarity Type Preleaded models available in sizes (O.D.) M8, M12, M18, and M30. Cable length 2 m. Quick Lock Preleaded models available in sizes (O.D.) M8, M12, M18, and M30. Cable length 2 m. Non-polarity Preleaded models available in sizes (O.D.) M8, M12, M18, and M30. Cable length 2 m. Connector Cables available. Preleaded 30 cm oil resistance flexible connector cables available in size (O.D.) M8, M12, M18, and M30. Quick Lock 30 cm oil resistant flexible connector cables available in size (O.D.) M12, M18, and M30. Non-polarity Preleaded 30 cm oil resistant flexible connector cables available in size (O.D.) M12, M18, and M30. Waterproof, sealed to IP67G