Loud enough to hear it on rc plane from cca 100m away. It saved my bixler 2 once when I used damaged 3S LiPo. It was inside the fuselage and I heard it on time. It would be good to somehow disable connecting of connector in wrong way. But it is not so critical as it can't be damaged that way.
Too loud ... Read more
If you use 3S battery and needs a simple, small and light buzzer, it is a good choice of the market... Buzzer sound level is good... LED light brigthness is also good... If it came with protection plastic film will be better for Off Road cars when get weat and also avoid dust. But for on road cars and ... Read more
It's easy to use. It works at the first time. It doesn't need anything else just plug&play!
The sound is loud enough and 3 green leds indicating if there are enough battery and 3 red leds indicating if there are not enough battery.
It comes with a protective translucent plastic covering the piece ... Read more
This device is a small, and very lightweight alarm signal stuff (ideal for planes, helis). Indicate all of cells with separeted leds: one green for good voltage, one red for undervoltage - pro cell. Not adjustable level for switch on buzzer/lighter, but it fix 3.3V/cell - its good for save LiPo battery ... Read more
Saves you from smashing a model to bits when the battery runs out, small and light weight, it has led's as well as a beeper. It measures and displays the status of each cell, Red LED's on one side and Green LED's on the other. Took a while before it started working for some reason, I thought it was faulty ... Read more
Very light and small, good for RC helicopter use.
I use it for bicycle lighting system.
So I don't drain the battery too much .
Beep is very loud so you can hear it in traffic well.
simple mounting . Beeps evry time when you plug it in . anoying
Simple plastic shrink tube around . Plug from battery can ... Read more
Loud makes it possible to hear it far away on the quad. At the moment i got a not to good 3s lipo. So it feels safe to have it as a reminder when to land. Shows which cells that are low battery. Beeps really, really loud when you plug it in.
Sometimes it's hard to see the leds
Just heatshrinked casing ... Read more
Very loud and very easy to interpret. It's easy to turn the connector around, but the whole thing is protected against that.
Although this hasn't happened yet, the soldered wires may poke through the shrink wrap after extensive use. I haven't seen that happen yet, though. Green means "the battery ... Read more
its small, sound loud, beep in first connect to Lipo, green led light show how many lipo cell in good or safe lipo voltage. I used this product with my 2s 7,4 volt lipo. Red led blinking first and when the voltage reach the tresshold, its sound Loud... beep one and beep frekwensi become high, its time ... Read more
- more or less appropriate price
- good quality
- satisfying dimension and wight
- can be used even for 2s, works fine - could be louder
- can be easily connected with the wrong polarity Can be easily connected with the wrong polarity, so be carefully. Unlike some other similar utilities, this device ... Read more
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