Hey so that particular mypin TA4-ssr is unavailable now. I am trying to locate a unit that will work. is this suitable option? http://www.amazon.com/IMAGE%C2%AE-SSR-25DA-Auto-tuning-Temperature-Controller/dp/B0087O6S2A/ref=sr_1_fkmr1_2?ie=UTF8&qid=1386368488&sr=8-2-fkmr1&keywords=mypin+ta4-ssr