Easy-to-use DC power analyser 0 - 60V 0 - 100A for measuring power flow in a low voltage circuit such as the flow - in Watts - and the cumulative rate of flow - in Watt-hours - from a solar panel or a DC wind generator into a battery. Simple +positive/-negative (GND) two-wire input (Source) and two-wire output (Load) for series insertion into circuit. Two-line LCD - updated every 0.4 seconds - displays eight different values: Power 0 - 6554 Watts to 0.1W resolution Current 0 - 100 Amps (max) 50A continuous to 0.01A resolution Voltage 4 - 60 Volts to 0.01V resolution Power flow rate 0 - 6554 Watt-hours (Wh) to 0.1Wh resolution Current flow rate 0 - 65 Amp-hours (Ah) to 0.001Ah resolution current in Amps power in Watts Voltage minimum (dip) over monitoring period Low in-circuit resistance just 0.001 Ohms negligible 7mA circuit load. Due to different batches, there may be differences in the appearance, color, and printing of the product, which not affect its use. Colour:blue Material:Metal Package Contents: 2 x Analyser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.