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Here is our range of PWM motor speed controllers that can be used in a wide variety of applications using DC brushed permanent magnet electric motors. The Porter, DNO, and 4QD controllers are analogue models that provide the main functions at a cost effective price. The Pro series are all digital controllers with multiple user programmable profiles that allow a much greater degree of control over motor performance. To choose the appropriate controller for your application you need to know the operating voltage and current requirements, and also decide whether you need reversing capability. The DNO and Pro-150 models use relays to provide reversing at lower cost, the Pro-160 and 4QD models are full H-bridge controllers without relays to give long term reliability and overload tolerance. If you need a display of voltage, current, and temperature then have a look at the Pro-160. We've put together some flow charts on this page which can help you make your selection. Please feel free to give us a call, we're always happy to talk about how we can help get your motor control project up and running.