Conditions: excellent conditions, full tested and cleaned. Description Alicat MCR series. Alicat MCR Series mass flow controllers allow you to control your mass flow, volumetric flow or pressure with one single device. With the MCR series you can maintain speed and accuracy at flows from 50 SLPM up to 5000 SLPM. Every MCR series mass flow controller is repeatable and accurate with calibrations available up to ±(0.4% of reading + 0.2% of full scale) accuracy. MCR-250SLPM-D / 5M, 5IN, GAS: CO. 250 liters per minute. Digital display with push button interface. What’s in the box? 1xALICAT MCR-250SLPM-D/5M 5IN, Mass Flow Controllers. 1x 24v Charger (power supply).