Hi, I don't think you really need that one,
if you just want a lipo low voltage alarm the cheap ones work just as well.
.
You can set the alarm to your own low voltage limits,
I set mine to 3.7 volts per cell. %)when plugged into lipo balance lead it will scrolle thu -- 1 cell voltage,-- number2 cell volts,-- number 3 cell volts,-- total volts.
Plug into balance lead any way round till it reads (it wont be damaged)
Hope this helps
Jim