Tachometer and hour meter for Diesel engines.

• RPM to 19,990.
• Correct reading regardless of the number of cylinders.
• Standard wire length is 8 feet.
• Requires vehicle power or external 9 volt battery.
• Contains tachometer, hour meter, two service timers, job timer and max RPM.
• Accurate means of setting exact engine RPM for proper operation of diesel engines.