Datasensor inductive sensors of the NAMUR line have values of voltage and current maintained at a low level so that it can be used in potentially explosive environments (such as "intrinsic" of protection). The function of limiting power is realized in the respective device and must be provided through an isolation amplifier suitable. Datalogic versions are available in 12, 18 o 30 mm in diameter, with outputs cable or with standard M12 connector.