Main Features:<br />Tested battery cell voltage (more than 3.6V) 2S LiPo battery: 2 green LED lights on<br />Tested battery cell voltage (more than 3.6V) 3S LiPo battery: 3 green LED lights on<br />Tested battery cell voltage (more than 3.6V) 4S LiPo battery: 4 green LED lights on<br />Cell voltage less than 3.3V? corresponding red light will on and alarm will be sounded<br />Used for 2S-4S lipo battery<br /><br />    Specifications<br />Specifications<br />	 Type: Batteries                                                	<br />Dimension and Weight<br />	 Package Weight: 0.05 kg                                                  <br />                        Package Size (L x W x H): 10 x 7 x 3 cm                                                	<br />Package Contents<br />	 Package Contents: 5 x Lipo Battery Voltage Alarm                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />                       Product Safety Disclaimer: <br />We do not accept any responsibility or liability for misuse of this or any other product.  All our products are extensively tested to comply with rigorous and strict QC standards.  For certain products (e.g. toys? knives? etc.)? we recommend proper supervision as we cannot be held liable for misuse or accidents.<br /><br />                                                <br />