Pragati Electronics supplies Photo Electric Proximity Switches. Pragati Electronics manufactures electronic access control systems and security systems, temperature controllers, infrared sensors, door interlock system, proximity sensors and panel accessories, and electromagnetic lock. The Photo Electric Proximity Switches are used when higher sensing distance is desired. The various options available in photoelectric switches are through beam, retro reflective and diffuse versions. The Photo Electric Proximity Switches are used for mark sensing and color sensing whereas light curtains are used as area sensors.