Features:- Servo test mode: manual automatic adjustment of neutral.- Servo test frequency: 50Hz 60Hz 100Hz at 300Hz 200Hz 250Hz 300Hz.- The RC CellMeter-8 digital battery capacity tester can be used with LiMH lithium-ion battery NiMH Nicd.- Support battery type: lithium polymer, life, lithium ion battery, nickel cadmium battery, nickel hydrogen battery.- Mode: voltage cell battery, total voltage, minimum battery voltage, maximum battery voltage, voltage difference between the highest battery voltage and the lowest voltage.Specifications:Material: ABSSize: 8.5x5x1.6cmPackage Contents:Digital Battery Checker*1User manual*1Notes:1. Manual measuring, please allow 1 ~ 3mm error,thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.