Good, Working Cole Parmer 78005-20 Digital Programmable Stackable Drive with ISMATEC ISM874 Pump Head, for speeds from 2 to 200 RPM.
Features -
Stack drives to save space on your counter top or place the drives on their back for a better viewing angle of the display—housing is tapered so the drives sit at an angle.
This drive is ideal for either continuous pumping or dispensing.
Dispense by speed in rpm; flow rates in mL/min; or volume in mL.
Volume dispensing mode can be programmed with pause intervals in seconds, minutes, or hours.
Four-digit LED displays flow rate or drive speed.
Use the detachable keypad controller to select speed, direction, and dispensing mode.
Control all operating functions via RS-232 (DB9 female).
Start/stop pump or reverse flow direction via contact closure (DB9 male).
