The KDG micro flowmeter and KDF switch operate on the variable-area float principle and are designed for the measurement of very low gas and liquid flows. Flow can be set exactly within the measuring range using the integral precision metering valve. All variable area flowmeter ranges can be optionally fit with one or two adjustable inductive proximity switches that can be configured to identify certain flow conditions. Two flow switch types are available. One is a monostable switch that activates momentarily as the stainless steel float passes by upon rising or falling flow. The second is a bistable switch that activates as the stainless steel float rises and remains active until the float falls past the switch on decreasing flow. Get a datasheet at http://koboldusa.com/sites/default/files/product_files/KDG-KDF_datasheet_0.pdf
Kobold Instruments Inc.