Engineered for 12 to 60-volt DC systemsRanges from 0-10,000 hoursHardware and instructions included for in-dash mountingBlack colored face with numbers in whiteProgrammable service check function helps schedule needed maintenanceThis hourmeter displays RPM when the engine is running and automatically displays run time in hours when the engine is off. A programmable service check function helps precisely schedule needed maintenance and it is engineered for 12 to 60-volt DC systems. It ranges from 0-10,000 hours. Hardware and instructions are included for in-dash mounting.