The MDO-84 is the pencil type micromanipulator (MO-10), a hybrid of oil-hydraulic and stepping motor that offers precise control. Used in combination with a stereotaxic manipulator, the add-on tool allows remote-control with travelled distance shown in digital display, with variable speed and precision settings: those are impossible to be performed by manual model. Two setting modes are available: entering speed directly or entering distance and time, in the range of 0.1µm/s to 500µm/s. The drive unit is small and lightweight so that it can be mounted easily on different manual manipulators.