Your Gp has the final say regarding bg meters because you'll get testing strips from them on prescription. You don't have to buy yourself as its part of your medication that's needed to keep you alive. Ask your surgery if they can supply a caresense duo it has large numbers and no calibration is needed. You get ketone stick as well as bg sticks. Also you may be able to get a cgm sensor and a pump, since they've started rolling out the 'artificial pancreas Nice have stated that everyone that's type 1 will be able to get a pump and dependant on circumstance those who fit the criteria can get the artificial pancreas straight away and those that don't will get one at a later date.