Muscle sensor v3 - TEST

Hi everyone,

I bought a sensor muscle V3 to internet, I need to try it. I used to the next code:

CODE

void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); }

// the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int sensorValue = analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: Serial.println(voltage); }

I put the electrodes in the muscle and the black in the bone, but in the scope when the muscle is relax i see value, but i had read when the muscle is relax the value is zero, but i don't sure about is information. In other hand the value are unstable. How can I know that my sensor is ok?. Thanks