Sonic is WRAS certified for 85°C, but we don’t recommend using it for water temperatures above 75°C!Related ArticlesCan I install Sonic if I want to also install a water softener?What are the operating conditions for Sonic?What batteries do I need to use with Sonic?What’s Sonic’s main purpose?Is Sonic a water meter? Can I use the data for billing? When will Sonic be certified as a water meter, so I don’t need both?