Using Method:
1.Set Starting Voltage:in normal display voltage state,press the button will display start charging voltage;long press for 3s the digital tube will flash;you can start or stop button to set starting up charge voltage value
2.Set Stop Voltage:in normal display voltage state,press the button will display stoping charge voltage;long press the button for 3s the digital tube will flash;you can start or stop button to set stoping charge voltage value
3.Factory Reset:in power on state press the start/stop button at the same time,digital tube will display 888;that represents factory reset settings  

Specifications:
1.Model:XH-M603
2.Input Voltage:DC 10-30V
3.Display Precision:0.1V
4.Control Precision:0.1V
5.Output Type:direct output
6.Voltage Tolerance:+/-0.1V
7.Application Fields:12-24V storage battery
8.Size:7.1x5cm/2.80x1.97inch
Quantity: 1 Pc
Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package includes:
1 x Batteries Charge Controlled Module1