Spa Instruments [I] Pvt. Ltd offers Micro-Controller Based Flow Indicator Totaliser. Spa Instruments [I] Pvt. Ltd also manufactures transmitters, isolators, converters, controllers and valve actuators and technologically advanced electronic security devices. The Micro-Controller Based Flow Indicator Totaliser, Model FT-101 Series , accepts linear and square inputs and gives accurate flow rate indication. The Micro-Controller Based Flow Indicator Totaliser has 3 1/2 digit display and has batching facility. This Flow Indicator Totaliser has input current of 4- 20 mA and requires main supply of 230 VAC or 110 V AC / 50 Hz. This Flow Indicator Totaliser has an aluminium powder coated enclosure.