The NKP is a plastic level switch capable of controlling vessel liquids. There are 2 kinds of plastic versions with various mountings individually available to cater most industrial applications. The switch has a maintenance free feature, compact design and high-switch capacity reed contacts. It can be installed on the vessel side. A hinged plastic float with a magnet is floating upwards and downwards by the level of the liquid. The magnet operates the reed contact capsule. The switching contact may be N/O contact or N/C contact depending on the position of installation.