Low RPM Set-Up Tach
Product # 9121
This combination 4000 RPM Tachometer and 18 volt voltmeter is a great multi-purpose set up device for engines with magnetos.
Set dual or single magneto timing, with selectable leads for dual mag apps. Operates on Vertex, Super Mag, and most racing magnetos. Mounted in a rugged blo-molded case with 6' test leads.