KNACRO Model airplane Power meter 0-100A 0-60V DC RC Helicopter Airplane Battery Power Analyzer Watt Meter Balancer Blue Digital LCD screen gives clear crisp number readings. 100% Brand new and high quality. Handles up to 100 amps intermittently and 50 amps continuous duty. Connecting load end to the battery provides real-time battery charging reading. Handles 0 to 60 volts. Works on 12, 24, 36, and 48 volt battery bank systems. Extremely low power consumption of 7 mA. More efficient than any LED meter. Measure energy(wh),charge(ah), power(w),current(A) and voltage(V). Accurate & precise 0.01 A current and 0.01 V voltage resolutions. Measures peak Amps, peak Watts(except for Doc Wattson) and Voltage minimum(sag). Precision Alu-Chrom current sensing resistor, with only 0.001 Ohms resistance and circuitry that draws only 7 mA. Uses DSP to increase ADC resolution and differential measurement amplifiers to increase noise immunity.