In fact, that's how Opto 22 started: our founders discovered a better way to build SSRs.
So of course we want you to use SSRs. (And choose Opto's guaranteed-for-life models!)
SSRs have largely replaced the older electromechanical relays (EMRs) of decades ago, thanks to their many advantages.
But for a few applications, you may want to consider an EMR.
Take a look at our SSR vs. EMR blog post and check your knowledge. Which should you use?