After 100+ hours of research & testing, we’re comfortable recommending the EATON CHSPT2ULTRA as the best whole house surge protector for your dollar (as of summer 2019) due to its’ universal compatibility, notification features and ease of install. Our original pick when first conducting tests was the Siemens FS140, but after the the release of the 3rd edition of the CHSPT2ULTRA, we’ve since revised our top recommendation.