Radio equipment company offers photoelectric fork switch or slot sensors, model rec/fs/02/04.It is available in 50 mm and 100 mm gap and its depth is 45 mm - 50 mm. It operates with the help of ir sensors. The fork switch is available in npn, pnp with both logic no and nc, and also with potential free contact. The operating voltage is 6-12 v ac or 24 volts dc.In some models it is also available with 0-10 sec built-in timer and along with mode changing facility. It is mainly used for non-contact sensing and process automation. The unit is available in metal housing, which is best fit for industrial use. All our units are covered by 12 months warranty.