Bronkhorst designed their “Liqui-Flow mini” Mass Flow Meter for liquids according to the concept of microfluidics. The very compact instrument measures ultra low flow ranges from 1,5…75 mg/h (0,025…1,25 μl/min) up to 12…600 mg/h, based on water. The straight, duplex steel sensor tube has an internal volume of less than 1 mm3 and operates on the thermal measuring principle. Due to its high pressure rating (up to 1000 bar) the flow meter is suited to HPLC systems. The instrument is equipped with a microprocessor-based printed circuit board, offering high accuracy and temperature stability. The RJ45 connection is used for power supply and for both analog and digital (RS232) communication.