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 Low voltage alarm mode for 2-8S Alarm set value range:OFF~2.7~3.8V Size: 40mm x 25mm x 11mm Weight: 9g