SICK IMB18-12NNSVU2S Inductive proximity sensors. SICK IMB18-12NNSVU2S is a inductive proximity sensors in the IMB family. SICK identifies this exact configuration as manufacturer article 1072819. The official technical record specifies Housing: Metric; Standard design; Thread size: M18 x 1; Diameter: Ø 18 mm; Sensing range S n: 12 mm; Safe sensing range S a: 9.72 mm; Installation type: Non-flush. The linked SICK data sheet is specific to IMB18-12NNSVU2S.