Description

Description:

1,onboard LM358 chips;

2,100 times gain circuit design;

3,onboard 10 k adjustable resistance, adjustable magnification ;

4,onboard power light;

5,chip has led the main pin, can directly input and output signals;

6,working voltage: 5 ~ 12 v ;

7,board size: 32.7 (mm) x13.3 (mm);