Pune Techtrol Pvt Ltd. Manufactures Magnetic Float Operated Guided Level Switch with External Cage and Controller Option. Pune Techtrol Pvt Ltd. Is an ISO 9001:2000 certified company. The Magnetic Float Operated Guided Level Switch with External Cage and Controller Option are used in various industries for single / multiple liquid level sensing and control in open or pressurized vessels. The switches are used in conductive or non-conductive liquids under varying temperatures, pressures, liquid viscosity and corrosive conditions.