1800Features:Three intuitive display modes Flexible case design offers three mounting options Fully programmable legends and adjustable alarm functions can be customized to fit every boat Monitors DC systems-voltage, amperage, battery state of charge - amp hours remaining, time remaining, % charge, battery temperature (alarms for all values) Monitors AC systems-voltage, amperage, watts, frequency (alarms for voltage, amperage, and frequency) Monitors tank levels-fuel, water, waste, (alarms for high level waste, low level fuel, and water) Monitors bilge-active, cycle count, duration (alarms for cycles, duration) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.