Vender Ifoyoy Battery low voltage warning w/buzzer adjustable lithiu NiMH NiCD ion phosphate CL al mejor precio

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: <10mA; Size: 50mmx20mmx20mm (LxWxH, overall); Package Included: 1 x Battery Low Voltage Warning Module