2in1 Indicator 1-8s RC Lipo Battery Voltage Tester Low Voltage Checker Low Voltage Buzzer Alarm

2in1 Indicator 1-8s RC Lipo Battery voltage Tester low voltage Buzzer Alarm 
*Low Voltage Buzzer Alarm, for use with 1 up to 8 cells - LiPo / Li-ion / LiMn / Li-Fe batteries for JST-XH connections
(Adaptor lead required for other connectors)
*Detection +/- 0.01v
*Cell voltage display range 0.5~4.5v
*Total voltage display range 0.5~36v
*1S test mode voltage range 3.7~30v
*Low voltage alarm mode for 2S to 8S
*Alarm set value range 2.7~3.8v
*Size: 40mm x 25mm x 11mm.
*Weight: 9g.
*Package Content:  1-8S Battery Voltage 2IN1 Tester Low Voltage Buzzer Alarm, 100% brand new.
*Note: When the voltage is below the set value, it will buzzer with red LED light, pre-set value 3.3V, push key which can change the voltage setting and save.
*The alarm sounds and red lights to warn you when the battery voltage is becoming lower than default setup or your setup. It can preverntyour lipo battery damaged due to low voltage.
*The default alarm voltage is 3.3V, the min. Voltage can be adjusted by the button.

Full Instructions included on back of each unit for easy operation.