Features:

Keep the back light on continuously.
Crystal shell LCD monitor power!
Dimensions:48x25mm Thickness:10mm
Display Window Size:36x12mm
Applicable Specifications:Lithium Batteries/Lead Acid Batteries

NOTE: If you don't leave a message which kind of battery you like， we will send you a random one.
Thanks for your understanding.
Package Includes:
1 x Waterproof Digital LCD Indicator Battery Capacity Tester
1 x Power Cable