Feature: 1.Digital LCD screen gives clear crisp number readings. 2.Handles up to 100 amps intermittently and 50 amps continuous duty. 3.Connecting load end to the battery provides real-time battery charging reading. 4.Handles 0 to 60 volts. Works on 12, 24, 36, and 48 volt battery bank systems. 5.Extremely low power consumption of 7 mA. More efficient than any LED meter. 6.Measure energywh, chargeah, powerw, currentA and voltageV. 7.Accurate precise 0.01 A cuurrent and 0.01 V voltage resolutions. Measures peaks Amps, peaks Wattsexcept for Doc Wattson and Voltage minimumsag. 8.Rugged- handles 50A continuous and 100 A peaks at 60V. Acts like a wire so doesn't affect model's performance. Precision Alu-Chrom current sensing resistor, with only 0.001 Ohms resistance and circuitry that draws only 7 mA. 9.USes DSP to increase ADC resolution and differential measurement amplifiers to increase noise immunity. Specifications: Color:Blue Voltage: 0V-4V-60V 0.01V Resolution. Current: 0-100 A peaks 0.01A Resolution. Power: 0-6554 W 0.1W Resolution. Charge: 0-65 Ah 0.001Ah Resolution. Energy: 0-6554 wh 0.1 Wh Resolution. Measurement Update period: 400mS. Signal Sampling Rate: sample/s. Data Queue Sequence time: 2 seconds. In Circuit Resistance: 0.001 Ohms. Operation Current: 7 mA. Size: 8.3cm x 4.7cm x 2cm /3.27inch x 1.85inch x 0.79inch Package List: 1 x dynamometer