12V Accumulator Sound Light Alarm Buzzer Prevent Over Discharge Controller Product information | ||||||||
1. size: 2.9 CM * 3.0 CM 2. the main chip: LM358; 3. when the battery have put (when the battery voltage is lower than 10.4 V), the red light is lit up and buzzer, realize the sound and light alarm, thereby achieve mastery of battery discharge, in case the battery discharge, damage to the battery; Features: 1, with sound and light alarm, have protection straightforward; 2, module input belt joint protection, input power supply polarity reverse won't burn out.But there were no overvoltage protection, if more than 15 v input, will burn out the chip module. | ||||||||
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Return Policy | ||||||||
We appreciate your business and offer an instant 7 days return policy.(7 days after receive the item). The returned item has to be in its original condition. We are able to refund your money without shipping cost. | ||||||||
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