Features: brand new and high quality Apply for: 6-60V MAX 80V battery. Set stop voltage: Normal voltage normal display mode, press to a stop voltage button to display the voltage Stop charging. long Press the Stop button, digital flashing, with the start and stop button, set the value of Stop charging voltage. Set start voltage: Normal display voltage state, press to a start voltage button to display the start charging voltage. long Press the start button, digital flashing, with the start and stop button, set the start charging voltage value. Setting error: Power mode while holding down the start/stop button, digital display 888, which is the factory setting. Use: In the setting of the voltage value, start button for game button raised, if stop button role to downward for key. Specifications: Input voltage: for DC 6-60V Display accuracy: 0.1V Control accuracy: 0.1V Output type: direct output Voltage tolerance: ±0.1V Apply for: 6-60V MAX 80V battery Dimensions: approx. 81x54x18mm/3.19x2.13x0.71in Note: Please allow 1-2 cm measurement deviation due to manual measurement. Due to the monitor difference and lighting effect, the actual color of the item may differ slightly from the color shown in the pictures. Thank you! Package includes: 1 x Digital display Lead-acid battery charging control module