12V Accumulator Storage Battery Low Voltage Undervoltage Overcharge Discharge Sound Alarm Buzzer Detector Protection Board

Ok

Ok

Arrived today, as soon as I have time I will try the operation.

the small size of the product

You have to try it

Everything's fine

The module is made neatly, it is regulated by a trimmer, it works at a low value not lower than 6.7v, at a high one I tried up to 16.6v, I didn’t want to try it further so as not to spoil it, a beeping signal sounds and a red diode lights up, I planned to monitor the battery, the seller and Thank you Jumu, I recommend it to everyone

When the battery voltage drops to the set threshold, the device activates and makes a shrill whistle. In the description, there is a set voltage swing threshold, which is dangerous to reach, consider!

I received it, checked it, when the voltage decreases below 10.5 V, the sound and light indication is triggered, it corresponds to the description, everything works fine. I'm happy with the product.

Haven't figured out yet how it works. The battery was 12.4, he did not squeak. I will test further. And looks so good quality

Order received, thank you. A good module, but if you believe the description, then not quite. When the voltage increases, it burns out itself.

The product arrived in good condition. The product quality is good. Thanks to the Joom team.

received a 12 volt discharge indicator. I have not checked it in work yet.

The module is super! Everything works great 😎

I received the parcel, everything is fine!!!

I received the goods. Thank you!

Didn't check the pack.

Thanks. Got.

Kind of the norm

Everything is fine

Working.