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| I wrore review for the 3S, the same i think for this. It is a cheap good lipo warning device. You can use it also in a rc car or a boat. With a small modification you can put the buzzer and Led out of the hull and water seal them.
18 people like this review.
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| This is cheap & practical Lipo low voltage warning device protecting my lipo from overdischarging. I am presently surprise that it comes with bright Blue/Red LED low voltage step warning which was not mentioned in the product descriptions. Both the LED + Buzzer warning works like a charm for me....A Happy customer.
12 people like this review.
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| LOW COST MONITOR NICE LIGHTS AND EZ TO HEAR .. I USE THIS ON MY SUMMIT 1 FOR EACH SIDE
12 people like this review.
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| No need for those expensive lipo cut-off devices. This plug and play device has several features that ensure your lipo is well taken care of. The blinking blue and red LED light gives you ample warning. If you are blind, the horn will make sure that you rest your lipo, if not, others will. Value for money, worth every single cent and i bought 6 of them.
9 people like this review.
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All perfect, but:
not so loud for planes
it is not marked from the factory (2s, 3s .. looks the same, so it all about resistors used), once you unpack those you'll never know what 'xS' are those.
6 people like this review.
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| Works great... put it in my sail boat with a 900mah rx batt.. no worries batt running out of juice. Bad thing is need to solder the connector.
5 people like this review.
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Para mi, es un dispositivo esencial para todos aquellos que necesitan controlar el voltaje de sus baterías LiPo.
Yo lo utilizo en un Traxxas E-MAXX 3906 porque el variador electrónico de velocidad original no lleva control de voltaje para LiPo.
Además del pitido lleva 2 leds (rojo y azul) que te indican cuando el voltaje baja de 6.8V y de 6.6V.
Lo recomiendo para asegurar la vida de tus LiPos.
5 people like this review.
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| The alarm could be louder. At 100m, you cannot hear it.
3 people like this review.
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Really wheap, usefull and light item, which enables to know when you'll soon be out of power.
I use it in a heli and it works perfectly, i know that when it begin to sound, i've approximatively one minute to empty the battery.
3 people like this review.
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| Works like a charm with my zippy flightmax 4000mAh 2S1P in my E-REVO.
3 people like this review.
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| Great value for money: Tiny13V10 controller, a blue and a red LED and a beeper. I like it!
3 people like this review.
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| This is an essential part of the kit for me with my Lama V4 (soon to be brushless) so I don't kill the LiPo that I am using to fly! For the price you can't make something that is the same form factor and weight!
2 people like this review.
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| Good little product. Need to protect Lipo that cost me a lot. Every one should have it.
2 people like this review.
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| I have finally tested this in a small electric plane. The ESC was an old brushed unit which was not set up for LiPos so I wanted to ensure I didn't over flatten the battery. The LEDs are a little hard to see in the sun but the buzzer is great. As the plane is fairly small I dont fly it too far away and it was surprisingly easy to hear the buzzer. Minus one star for not labelling 2S and 3S units.
2 people like this review.
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| Beep sound level is a bit small. I prefer more louder.
2 people like this review.
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quite small, cheap and light weighted. easily fix and can be mount onboard heli/plane to monitor batt voltage. c0me with leds and buzzer.
really bright. or izzit coz i using on 3s? sound is quite loud for me. but i tink if u flying plane, sure the buzzer sound not loud enough. if heli, not flying too high, should be able to hear it.
good for micro size heli, since normally wont fly too far.
1 people like this review.
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Very good stuff. The buzzer is very loud.
Unfortunately the buzzer stop working after ~20 flights. I will buy more.
Tres bon produit. Une led bleu est allume quand la tension est bonne. Ensuite elle clignote, puis elle passe au rouge et le beeper sonne.
Le beeper est tres puissant malheureusement apres quelques vols il a stopper de fonctionner.
1 people like this review.
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| I am very happy to get this one. It's worthed your money to get this to protect overdischarge of your Lipo battery. Very safe and relaibel gadget. get one and install it in your heli and you will see what I mean.
1 people like this review.
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When you plug it a beep sound and blue light shines (7.4v up)
7.4v to 6.8v > blue light flash
6.8v to 6.6v > Red light shines
Below 6.6v Red light flash & Beep
1 people like this review.
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| Esse monitor funciona direitinho. |
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5 crowns 
