1Equipped with a large LCD display, it can visually display the battery type, remaining power, total voltage, etc. 2Support battery capacity detection, voltage balance, built-in resistance, battery discharge, ESC / Servo / PPM test. 3Helps optimize battery performance and extend the overall battery life by ensuring the balance of individual batteries. 4Display the estimated capacity and voltage of LiPo / LiFe / Li-ion / NiMH / NiCd battery pack, and quickly check whether the battery needs to be charged before use. 5Support the wide and narrow frequency servos detection, you can manually test servo rotation, the central position of the servo, the servo automatically swings left and right, and the swing speeds can be adjusted.Condition: 100% Brand New_x000D_Item Type: Battery Meter_x000D_Material: Plastic_x000D_Input Voltage: 6.5V - 29.4V_x000D_Function: _x000D_1. Battery Capacity Detection_x000D_2. Voltage Balance_x000D_3. Built-In Resistance_x000D_4. Battery Discharge_x000D_5. ESC / Servo / PPM Tester_x000D_Product Size: Approx. 83x50x15mm / 3.3x2.0x0.6in1 x Battery Meter1 x English Manual1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding._x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.