 There are notable non-electrical analog devices, such as clocks (sundials, water clocks, pendulum clocks, analog watches), the astrolabe, slide rules, the governor of a steam engine, the planimeter (a simple device that measures the area of a closed shape), Kelvin's mechanical tide predictor, acoustic rangefinders, servomechanisms (e.g.the thermostat), a simple mercury thermometer, a bathroom scale, and the speedometer 
The telautograph is an analogue precursor to the modern fax machine.It transmits electrical impulses recorded by potentiometers to stepping motors attached to a pen, thus being able to reproduce a drawing or signature made by the sender at the receiver's station.