Protocontrol instruments [india] manufactures rectangular type proximity switches with feature of being mounted with just two screws. The company provide few models of the square type proximity switches with built-in junction box which eliminates use of extra junction box while wiring. The square type proximity switches are substitute with the imported ones and can be applied for position, speed, direction and level sensing. These proximity switches are available with various advantages which make them alternate to limit switches such as no physical contact; no wear and tear, long life; no contact bounce. No false pulses; zero maintenance; high repeat accuracy; many mounting options; led indicator and for use in hazardous locations. The company can provide 800 varieties of proximity switches including tubular threaded switches from m8 to m 80 square/rectangular switches, slot types switches in ac and dc versions along with inductive proximity switches for position sensing of metallic parts. These square type proximity switches are capable in sensing speed, direction and rotation of any moving or oscillating machines as well as level of petrol, diesel or plastic granules. For level sensing of any solid, liquid or granules capacitive proximity switches are ideal. Counting of plastic bags or pouches can be easily achieved.