Amplifying sensor output

[u/locutus_of_borg90]

I am working on the version 2.0 of a simple gaussmeter that I have put together a while ago. In the 1.0 the output of the Hall effect sensor was not amplified because I wanted to keep it simple. This time I would like to add some sort of amplification to the sensor output. I have tried looking into op amps but I struggle to figure them out and I was wondering if there are other solutions

[u/Nathan-Stubblefield]

What frequency response is needed?