MAPMEASIL Cirvometer/Mapmeasur Silva
The Silva Map measurer is an analog navigation instrument with a pointer. Choose one of the eight map scales between 1:15.000 and 1:750.000 according to your map, and it measures your planned route. Given a known speed you can then also calculate how long it will take to cover the rest of the trip. SPESIFICATION : Display : Analog Scales : 8 scales between 1:15 000 and 1:750 000
Planimeter
Stopmap