Blue Sea Systems M2 AC AmmeterModel: 1836-BSSFeatures:Auto-dimming, bright OLED display is easy to readEasy to adjust80dB alarm on all modelsIsolated MOSFET relayMonitors AC Amperage on large, bright display. Supports programmable current transformer ratios. Accurately measure and alarm the amperage of your AC system. (measures 2 independent circuits)SpecificationsFunctionto 300AInput Voltage7-70V DCAlarmsHigh/Low CurrentCurrent Accuracy 2.0%Current Range0-150ADisplay Size55mm x 28mmMaximum Power Consumption1.00 WattMinimum Power Consumption0.3 WattWeight4.00lb (1.81 kg)What’s in the Box:M2 AC Ammeter Head UnitSurface Mount Bezel and SealSurface Mount GasketSurface Mount CoverFlat Mount BezelFlat Mount ClampMounting RingMounting NutConnectorsScrewdriverAC Current Transformer