I know that Taylor TF-100 is the most recommended test kit on the forum, sadly it's not available to me in the UK.
I've been trying to find alternatives.
Currently I have Spa Frog test strips and a Lovibond kit. They never agree with each other and the Spa Frog strips I've found to be very unreliable. (At times 0.5-0.7 away on pH from what the dealer uses - waterlink spin lab)
My search turned up A range of Photometers from ITS .... Exact Micro and iDip.
I can get both these items here in the UK but I've no idea how good any of them are.
Anybody used them or heard if they're any good.