Suzuki - Tachometer w/Troll Mode Scale - White - 34200-93J54 This 4" Suzuki tachometer has two scales. The primary one is from 0-7,000 RPMs for general use, and the secondary scale runs from 0-3,000 RPMs with 50 RPM intervals for use with the Suzuki Troll Mode System. Additionally, this gauge includes warning lamps for Engine Temperature, Low Oil, Check Engine, and Over-Rev. When in troll mode, the Over-Rev lamp will remain lit to indicate that the Troll mode is active. The secondary RPM scale is designed to make it easier to set and maintain a lower trolling speed. Features: Size - 4" diameter 0-7,000 RPMs 0-3,000 RPMs This Suzuki Tachometer is Compatible With the Following Suzuki Outboard Models: DF40A 50A 50AV 60A 60AV 70A 90A 115A 140A 200AP 250SS