Features Wide Operating Voltage: This watt meter has a wide operating voltage from 8V to 60V, there are two different current meters to choose from: 130A or 150A. Easy to Read: 100% brand new and high quality watt meter, designed with digital LCD display for easy reading. Suitable for: This is a power meter with an electrical connector, mainly used for RC model airplanes. Seiko Manufacturing: This watt power tester has exquisite workmanship, each of our products is carefully designed and manufactured, and we have strict quality control system to ensure product quality and quality stability. Excellent After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. Specifications: Working Voltage: 8V~60V Current: 0~130A; 0~150A (Optional) Error: 0.01A Resolution: 0.01V(0~60V); 0.1W (0~6554W) Size: 8.5*4.3cm/3.4*1.7in Weight: 160g(approx.) Package Includes: 1 x Watt Meter Package List