Are these things any good for keeping a bar fridge temp constant?
http://cgi.ebay.ca/Mini-Digital-Temperature-Controller-Thermostat-Aquarium-/130458655563?pt=LH_DefaultDomain_0&hash=item1e5ff11b4b#ht_4382wt_906
http://cgi.ebay.ca/Mini-Digital-Temperature-Controller-Thermostat-Aquarium-/130458655563?pt=LH_DefaultDomain_0&hash=item1e5ff11b4b#ht_4382wt_906