This item typically ships in 1-3 business days. You will be contacted via email if the ETA is longer than this.
- A hand held precision instrument
- Accurately determines RPM on 2-cycle and 4-cycle, single cylinder engines
- No direct connection required
- Just hold built in antenna near spark plug
- Selector switch gives 0-5000 RPM low scale or 0-15000 RPM high scale
- Solid state electronics
- Battery NOT included