New 1S-8S 2 in1 Lipo Battery Voltage Tester volt meter monitor buzzer Alarm 1S-8S +support for 3.7V-22.2V 3.7V 7.4V 11.1V 14.8V 18.5V 22

 1S-8S 2 in1 Lipo Battery Voltage Tester volt meter monitor buzzer Alarm 1S-8S +support

2 in1 Lipo Battery Voltage Tester volt meter monitor buzzer Alarm 1S-8S +support  

This is a new product combining all the voltage measurements with low-voltage alarm function. Li-Po Battery Voltage Buzzer+Indicator: directly plug it into your operating battery, it will monitor the conditions of your battery all the time, so your entertainment will be more interesting and limitless.

Features:
* Low voltage Buzzer alarm mode for 1S-8S.
* With a push key by which you can change the value settings and save.
* When voltage is below the set value, it will buzzer very loudly with red LED light. (pre-set value is 3.3V)
* Mini shape, no larger than a common key.
* Compact, easy to carry.
* Really useful in flight if you can't see the lights.
* Use for 1-8s Lipo/Li-ion/LiMn/Li-Fe.
* Voltage detection precision: ±0.01V
* Unit voltage display range: 0.5-4.5V
* Total Voltage display Range: 0.5-36V
* 1S test mode voltage range: 3.7-30V
* 1S test mode detection precision: ±0.5%