ITEM NAME:Battery low voltage warning w/buzzer adjustable lithiu NiMH NiCD ion phospha Ew 100% Brand New and High Quality This module can give warning when your battery voltage is below your preset voltage. Any battery with voltage 6.5V - 30V Green LED - Battery voltage is greater than the threshold voltage Red LED - Battery voltage is lower than the threshold voltage Buzzer will sound when the battery voltage is lower than the threshold voltage Buzzer switch - Disable buzzer function Main switch - Disable the module For example, three lithum ion battery procedure: 1. The operating voltage for 3 lithum ion battery is 9V-12.6V 2. So, the warning voltage should be 9.5V 3. Apply a voltage of 9.5V and adjust the potentiometer clockwise until it changes from red to green or vice versa Specifications: Input: DC 6.5V - 30V Input with reverse polarity protection. Operating current:
