oxygen flowmeter 1) Model: KB6301 2) Inlet pressure: 15MPA, outlet pressure: 0-0.3MPA (adjustable) 3) Flowmeter is buoy type; two types of scales are available: 0-10L/min and 01-15L/min; flow rate: 0-10L/Min (adjustable) 4) Relief valve pressure: 0.35±0.05MPa; relief valve with alarm function 5) High quality and transparent poly carbon humidifiers with three optional color:green, blue, white 6) Different Standard Outlets pin indexs are available to connect with other plugs. (including BSO, ASO,GSO, JSO,FSO pin index) 7) With chrome plated brass 62 body regulators; high precision, stable. We can customized the medical flowmeter( with regulator and humidifier) according to customer's requirement.