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Unshielded, Square type, AC 2-wire models, Sensing distance 10 mm ±10%, NO, Pre-wired models.Sensing head size30 mm x 30.5 mm x 52.5 mmTypeSquare type, UnshieldedPower sourceAC 2-wire modelsSensing distance10 mm ±10%Setting distance0 to 8 mmOperation modeNO.Sensing head size30 mm x 30.5 mm x 52.5 mmTypeSquare type, UnshieldedPower sourceAC 2-wire modelsSensing distance10 mm ±10%Setting distance0 to 8 mmOperation modeNO