AD584 4 Channel 2.5V/7.5V/5V/10V High Precision Voltage Reference Module With Transparent Housing

Description: ? Built -in AD584, highest accuracy and stability Same port can output reference voltage : 2.5v, 7.5v, 5v, 10v The MCU switch 4-way reference voltage output with LED indicators Single - button operation switch reference voltage Not includes lithium battery (503035, 3.7V, 500MAH) , easy to carry,can be charge by DC 5V,with charge indicator 4mm banana socket as output interface ? Note: ? Please check input battery charging voltage and do not charge with more than 5.5 volts DC.? Please charge with a USB adapter. ? Package includes: ? 1 x High Precision Voltage Reference Module with housing?