Banggood

I'm buying 3 pcs. Very good produckt. thankbangoods. changed the voltage referance..

top mach es gut !

good s received how ever performance will be reviewed after testing and application of goods

Not a good review since one arrived broken, If Banggood replaces the damaged item I will write A PROPER REVIEW WITH DETAILS OF HOW THESE WORK.

très bon produit

It is perfect. it can be adjusted for which voltage you want to be alerted, and it is VERY loud. I would recommend and I will buy more later.

Look good quality but yet to test!

Will use it as extra reminder when my trolling motor battery is going down and when is time to look for coast or search paddles. Currently trying to discharge battery till allowed voltage for to adjust potentiometer. So do not forget that for correct adjustments you will need lab-psu or adjustable power-down dc-dc module. Noise (beep) is enough loud to hear it on good distance so not only me will know about current battery condition.

The alarm works as expected and is very cheap. It's a bit hard to set the alarm low voltage trigger level. It comes with a removable sticker on the buzzer to protect against moisture when you wash your bike. You can build one yourself but not worth it since this is so cheap.

Very good circuit and can be adjusted accurately. I bought a couple of these and have replaced the buzzer with a relay on one of them. Works very well and the relay is activated when the alarm level is reached