... , self-detection, provide reliable uninterruptible power to your instrument.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Features:1.19 inch rack ... Time0 ms; less than 4 ms from inverter to bypass and vice versaZeroLED indicatorsStatusLoad level / Battery level ... , Battery , Utility Power, Inverter, Bypass, Overload, FaultAudible AlarmBypass, On battery mode, Battery ...