Main Features:<br />It can be used for 2 - 6S Li-Polymer batteries.<br />RC Li-Polymer battery monitor with LED to show the the testing results<br />Make it easier for you to check your battery before flight to avoid overdischarge.<br />Auto shift the voltage data one unit by one unit.<br />Small size and light weight? really portable.<br />Voltage detection precision: + / - 0.01V<br />Unit voltage display range: 0.5 - 4.5V<br />Total voltage display range: 0.5 - 27V<br /><br />Note:<br />This device is for quick reference before flight? not for accurate measurement for the battery.<br />Extra balance charger plugs are needed (which are not included in this package).<br /><br />    Specifications<br />Specifications<br />  Type: Batteries                                                  <br />                        Feature: Tools/accessories of radio control series toy                                                 <br />Dimension and Weight<br />  Product Weight: 0.005 kg                                                  <br />                        Package Weight: 0.025 kg                                                  <br />                        Product Size (L x W x H): 5 x 2 x 0.9 cm / 2.0 x 0.8 x 0.4 inches                                                  <br />                        Package Size (L x W x H): 7 x 5 x 2 cm                                                 <br />Package Contents<br />  Package Contents: 1 x Li-Polymer Battery Voltage Monitor Indicator Checker Tester                                                 <br /><br /><br /><br />                                                <br />