Measures frequencies from 10 Hz to 80 Mhz and period measurements from 100 ms to 1 us. Gate times are 0.1, 1.0 10 seconds. Measures 8" x 3" x 10", weight 5 lbs, power requirements 110 volts ACMeasures frequencies from 10 Hz to 80 Mhz and period measurements from 100 ms to 1 us. Gate times are 0.1, 1.0 10 seconds. Measures 8" x 3" x 10", weight 5 lbs, power requirements 110 volts AC