Can i amplify the signal with this lm358 ? just connect and amplify ? I am sorry about my electronic knowlodge. I am newbie. Accualy i am software developer.
As I already told you: post the manual/datasheet for that sensor if you need more help.
why you telling this - >What do you use that sensor for? It's a medical sensor but I hope you don't use it in a medical environment with connected to an Arduino.
In medical environments hardware is often responsible for the decision about life and death. An Arduino is not built to be reliable enough for such decisions. In my area you will never get the necessary certifications to use an Arduino in medical environments.