I'd prefer equipment you can get on the NHS for free, no sense in buying any expensive things I probably won't use that much, even though my blood glucose management is not that bad. I can generally tell what my blood sugar is by seeing how tired I am, and when my muscles start to feel achey as if blood struggles to get to them, when I know that feeling, I know I have a high blood glucose. If I feel opposite to agitated or tired, it's generally below 10 as I am used to that sensation and when I hold onto it, I won't need to test, it's just second nature. And a hypo is a bit self-explanatory, as feeling shaky, drunk and stuttery would be simple signs, with weakness and drowsiness being really low to about 2.0.