UGears STEM LAB Tachometer - 117 Pieces On-Road RTR Fully mechanical — no batteries

Fully mechanical — no batteries or electronics required

The DIY wooden model Lighthouse of Alexandria by Ugears is based in large part on the surviving historical record

decal sheet (assembled with front & rear body mounts and rear body support for clipless mounting)

58 inches (91mm) Diameter: 1

Requires Painting) (Includes Grille

UGears STEM LAB Tachometer - 117 Pieces On-Road RTR Fully mechanical — no batteriesUGears STEM LAB Tachometer 117 Pieces A tachometer is a device designed to measure the rotational speed of various parts in engines and other mechanisms. It calculates revolutions per minute (RPM). The tachometer also measures and monitors load limits, in order to decrease or increase RPM so that the engine or mechanism runs within its optimal parameters. Age 8yrs+ Keep away from children under 3 yrs. Self Assembly without glue. Number of components: