The unit will diplay the battery voltage and the current in and out of the battery, and estimate the time to charged during charging or the time to discharge during discharging.
The state of battery is visual and also features an alarm when the battery falls to a preset level.
 
 
Battery Voltage and current display
Battery level and remaining time display
Blue Illuminated background (timed)
50A shunt
Suitable for Leadacid, Gel and AGM batteries