Nautilus Commercial Series TC916 TC 916 TreadClimber Displays: Speed, Distance, Time, Calories per Hour, Total Calories, Floors Climbed, Odometer and Heart Rate Adjustable speeds from 0.5 to 4.0 mph Heart Rate Monitoring: Contact sensors and wireless telemetry Dimensions: 70"L x 36"W x 59"H List Price: $7,399 ... Voltage: 110V