Profile: Key Instruments offers precision machined electronic measuring products for medical, industrial, chemical and laboratory applications. Our brands include Key Instruments™. Our products include acrylic flow meters, molded plastic flow meters, glass tube flow meters, electronic flow meters and flow control valves. We provide tripod stands, pocket flowmeters, tube fittings, adapters and nuts. Our Series FR2000 is a standard precision-machined acrylic flow meter for liquids or gases, it has direct reading air and water scales. Our Eagle-Eye® alarm features a non-contact sensor that is not affected by contaminants in the flow stream, and has integral red and green LEDs and audible buzzer to indicate the operating state.