9V 12V Battery Sound and Light Alarm Protection Module Against Over-discharge Board

9V 12V Battery Sound and Light Alarm Protection Module Against Over-discharge Board

banggood Module Board

8.99$
3.99$
9V 12V Battery Sound and Light Alarm Protection Module Against Over discharge BoardScope Mainly used in battery9V or 12Vvoltage monitoringsimple and practicalsupport sound and light alarm Features When the buzzer low voltage will DiDiDi sounds and the red LED lights upwhen the battery voltage rise above to the set valuebuzzer will stop alarm Size2 9 x 3 cmThe main chipLM3589V BatteryWhen a battery over dischargebattery voltage drops below about 8V the red lights and the buzzer calling to achieve sound and light alarmto achieve control battery discharge statusprevent over discharge batteryand damage battery 12V BatteryWhen a battery over dischargebattery voltage less than 10 4V the red lights and the buzzer calling to achieve sound and light alarmto achieve control battery discharge statusprevent over discharge batteryand damage battery Advantages With a sound and light alarmsimple and practical The module input with reverse protectionif reverse polarity power input will not burnBut without overvoltage protectionif the input exceeds 15Vthe chip above the module will burn out Adjustment method 9V BatteryInput 9Vthe LM358 voltage adjustment between 2 feet and 4 feet to about 5 78Vthe alarm voltage is 8Vwe has set it before shipmentso you dont need to adjust it again Clockwise adjustment2 feet and 4 feet voltage is reducedthe sensitivity increased 12V BatteryInput 12VThe LM358 voltage adjustment between 2 feet