Weems & Plath have designed a plotter that is nicely priced, easy to store and really very good. Ideal for transferring your GPS position onto compact chart tables, the Paralock Plotter includes a locking knob for increased accuracy and finger holes which enable precise ‘plotter walk’. It can also be used as a parallel rule, ruler and protractor. It comes with complete instructions and at only £12 we reckon it’s an absolute bargain.