Flowstar Instruments Pvt. Ltd. Manufactures Float & Board Level Indicator. Flowstar Instruments Pvt. Ltd. Is an ISO 9001:2000 accredited company. Float & Board Level Indicator is provided with a large diameter float which moves up with the change in liquid level in the tank. The float of Float & Board Level Indicator is attached to a multistrand wire rope, which passes through 2 nos. Friction less specially designed Pulleys. The Pulleys if this indicator is available in turn are connected to a pointer, which moves on a graduated scale by the side of the tank. It is used in water, veg oil, LSHS, molasses, caustics, brine, 2SO4 Etc and vapor sealed for Solvent, Hcl, and NH40H etc.