Free Flyer : I think you have not understood correctly the question. 1- This is a special application. 2- If the system is unattended, it serves of nothing of beeping and sounding if nobody is there to hear it!!!. It can even catch fire if nobody is there to hear it.
So: conclusion: Lipoly can only be used in situations when someone is near by to pay attention to the device...!!!
I use these for all my air and ground vehicles. The beeper is loud enough that you can hear it from a fair distance away (20 meters). It's especially nice to use with multirotor applications. Once you hear the beep, you have 30 seconds to bring the craft in without overdischarging your Lipos. It's really light and easy to attach. I use a small amount of velcro and hook it to my battery straps.
i use Velcro dots to secure them in to my vehicles etc - they come in strips with the hook velcro on one strip and the fluffy side on the other strip, they are self adhesive on the back and stick very well, i put the fluffy side dots onto the back of lipo alarm and the hook side into the vehicle, you can use them for small receivers as well. if you do it the same on all your vehicles you could just swap the lipo alarm to the one you are using at the time, but for the price i just brought a few of them.
I used zip ties and i mounted It next to the board, just find a spot with Works for you.
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Very loud ear piercing sound that is easily heard, however i have not tested it out yet in a quad or similar but im quite sure you would hear it if not to far away and possible even at some smaller distance.
Just when the battery pack is connected it beeps for about a 1 seconds so be prepared for that and green lights come on that show which batteries are connected. If a battery voltage goes down to under about 3.3V it starts to beep at an interval off 0.5 sec on and 0.5 sec off (i would like it to be on constant but oh well, might be able to change some components to do so) and the same led that correspond to that battery blinks red at the same interval and the green corresponding led turns off completely at this point.
When the voltage goes up on that battery to over about 3.3V the beep stop and the green led goes on and the red stop to the next time it goes under again.
Nothing really to complane about exept this interval thing. I would absolutely recommend it but i havent flown with it yet though to see if it could be heard with motors on but im quite sure you would even at a little smaller distance.
I bought two of these. This is a great product. I tried with the alarm is loud and sounds very good from a distance at least 50 meters. Now I am calm about my batteries and know when to stop. I changed the old NiCd batteries on my drill and put lithium polymer 3s now works perfectly and alarm tells when to stop. I strongly recommend taze alarm.
brillant item very simple device an very affective,you can hear the alarm when doing fly bys clearly
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I use this simple and inexpensive item on my own Multi-rotor craft. The LEDs are a great visual indication of battery voltage and the loud Piezo buzzer lets me know when its time to land with a safe amount of voltage in the pack - Ben