Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Baby Introduction By detecting the electromyogram (EMG), measuring muscle activity has traditionally been used in research, however, With shrinking but more microcontrollers and integrated circuits advent EMG Road and sensors can be used for various control systems. Sensor will measure filtering, rectifying electrical activity of the muscle output 0- volts, the output size to take Depending on the amount of muscle activity is . Material: ABS Photo Color Easy to controller detects muscle activity Baby characteristics Compact Designed for Microcontrollers Send data Breadboard supply voltage: + -9V dual supply, minimum + -3.5V Package Contents: 1 x muscle sensor board 1 x professional EMG cable 3 x disposable surface electrode Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.