Wow, Ross has come a long way. He was just another hardcore brewer/serial poster from back in the day.
Jaycar sell similar stuff, that allow you to thermostatically control a fridge to an optimum ale temp of 18 or so degrees.
I used to be a hardcore beer geek and brewer for about 10 years. Entered comps, got some medals along the way, stewarded at a comp for the beer tasting experience, hung out with local micro owners/brewers and picked their brains, as well as subjecting them to my efforts for constructive criticism. Brewed a myriad of styles, but always was obsessed with the perfect weizen(mit hefe), and read Warners book as if it were a bible. Stepped mash, decoctions and all the other weird shit.Farmed about 3 different varieties of wheat beer yeast(liquids) In the end it consumed too much time, and I lost my mojo. I’ve still got some of my gear, but can’t be F’d doing an extract brew for chaep beer cos i know ultimately I’ll be dissapointed and wish I’d done an AG. IMHO that kit you’ve got Jolan, needs a booster bag instead of the sugar, about 25 grams of finishing hops to steep, a real size sachet of safale us05 yeast( cos the miniscule amount that is under the lid is not enough to adequately ferment that goop), and don’t let the temp get past 20 degrees max, 18 is optimum, despite what the can instruction say.Bottle and leave for 6 weeks and drink.