Features:
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: 4-15V
Low voltage alarm mode for 2-8S 
Alarm set value range:OFF~2.7~3.8V 
Specification:
Size: 40mm x 25mm x 11mm 
Original box: NO
Net weight: 9g
Package weight: 15g
Color: Red
Package Content:
1 x 1-8S Battery Voltage 2IN1 Tester Low Voltage Buzzer Alarm