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  • December-30 2016 04:23:38

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

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  • November-26 2016 09:34:30

    top mach es gut !

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  • October-22 2019 23:57:44

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

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  • March-24 2017 12:59:30

    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.

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  • March-06 2019 17:55:30

    très bon produit

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  • August-07 2020 15:14:02

    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.

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  • December-01 2020 17:57:37

    Look good quality but yet to test!

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  • August-26 2017 03:23:35

    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.

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  • June-30 2017 06:45:55

    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.

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  • January-12 2019 11:33:13

    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

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