i have 2 Herpstat intro+ and one VE 300 (single input); my T8 runs on a Herpstat 2 Redline. it's worth buying the stand-alone (whether 1 or 2 input) thermostats IMO; they can be used for anything and you don't need to sink money you don't need to.
EDIT: i run a rack on heat tape with a Herpstat Intro+, Corny's 20gal on a Herpstat Intro+, Peach Sun Tea's Q tub on a VE300, and Yellow's RHP and UTH on a Herpstat 2 Redline