SMC offers a variety of auto switches for actuators and air grippers.  Reed and solid state switches are available in a general purpose type or with 2-color indication, which allows the optimum operating position to be determined by the color of the light.  Solid state switches are also available in 2-color indication with diagnostic output, water resistant 2-color indication, built-in OFF-delay timer (200 ms), magnetic field resistant, heat resistant and wide range detection configurations.  Various lead wire lengths are available.

Trimmer auto switches can detect various size work pieces by the difference of more than 0.5mm. The sensor enclosure is rated IP67 and the amplifier is IP40. Trimmer switches are available in direct or rail mounting styles. The sensor and amplifier can be connected without restriction through the use of an e-con connector.

SMC's hygienic auto switches were designed to work in areas where the cylinder surface is washed.  Rail mounting allows a freely adjustable mounting position, including intermediate positions.  These switches are designed with as many curves as possible and no recessed areas leaving extremely small amounts of residual cleaning solvent.  D-F6 auto switches have a stainless steel case and set screw.