Simple & easy to use!
A perfect solution for keep monitor battery status! Serial it in between your device and battery. Quickly let you know the total voltage as well as voltage in percentage.
![](https://shop.wtihk.com/image/cache/catalog/power/LM339/LM339_v2_asm-500x500.jpg)
LED Test purpose. 4 LED ON when short to GND
Feature:
- Inverse polarity: NO
- Dimension 20 x 20 mm
Lipo Battery Voltage Status LED Indicator Gauge Module - 3S
- Product Code: LM339-3S
- Availability: In Stock
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$1.49
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