I found a cheap thermomter that was digital, had a remote wired tHermostat. My only complaint is a slow one second refresh rate. But it seemed to handle staying in a boiling starter for 15 minutes without dying. Better than other remotes I've broken. It also showed the right temp when the water/starter started boiling. And FYI, I am not affiliate with this company, just bought my ro water setup from them. They are named: air water ice.