The T-50 Series hour meter is the answer to applications requiring low power. It is an economical and reliable hour meter. A reliable electromechanical wheel-type indicator is used to store accumulated hours. This model is also frequency insensitive. This compact tamper-resistant meter is sealed against the environment to provide years of service. A quartz crystal time base insures accurate time keeping. This elapsed time indicator is designed for use on test and recording equipment, for providing maintenance control, for establishing warranty programs, for measuring machine utilization and production time, or for any application where time-in-use is to be determined.