Triveni engg & marketing providesoffers a range of rugged infrared photoelectric switches in all four detection modes. These four modes are , ie, thru beam, diffuse beam, retro reflex and polarized reflex. Modulation of infrared light and special circuitry ensures vvery high ambient light immunity is provided by modulation of infrared light and special circuitry. For photoelectric switches having separate amplifier and control unit supply voltage options are 230/110/24/12 v ac and 24 v dc. Outputs are potential-free relay contacts and npn transistor. On the control unit, pprovision for on delay, off delay and gain adjustment is available. On the control unit. Light on, dark on function is wire selectable. For built-in amplifier and control type photoelectric switches, tthe supply voltage is between 12 and 24 v dc, output is npn/pnp transistor for built-in amplifier and control type photoelectric switches. Protections include short circuit of load, reverse polarity, power on spike and inductive load. Maximum ranges obtainable are 35-m in thru beam, 2-m in diffuse beam, 10-m in retroreflex and 4-m in polarized reflex. Applications include oobject sensing, positioning, counting, roll diameter, loop and level control are the applications of infrared photoelectric switches.