Redwood Microsystems MicroPR
The Redwood Microsystems MicroPR is a gas pressure regulator based upon the microvalves developed by Redwood Microsystems. The operating principle is the same as for the MicroFR, except that a) there is no flow restrictor in the flow path, b) there is only a single pressure sensor, and c) feedback control uses the pressure reading, not the flow reading, compared against a setpoint.
These are legacy devices: once the inventory is exhausted, no new devices will be available (unless of course someone wishes to invest in the redeployment of their manufacture...)
More information upon request.
RETURN & REFUND POLICY
There is no formal return and refund policy, but Aquarian Micro will make every reasonable effort to achieve full customer satisfaction.
There is a $25 handling charge. Shipping will be via US Priority Mail, and costs a flat $25. Domestic shipping only. International shipping is possible, but only upon special request.