just buy a cheap one with good reviews off amazon
mine is from beurer, but not sure if thats a thing in the US
also you wont get fat at all from simple sugars if you use insulin pre workout. center the carbs peri workout and theres no way youre gonna get fat.
i mean was eating over 150g of glucose/dextrose on slin and in fact my last bulk where i used insulin the whole 12 weeks was the most successful ever because i didnt put on any fat at all. no GH either...
the 1.5-2.5 hour peak time is wrong. you can measure that with your blood sugar
for me insulin peaks at 45 or 50mins after injection and then stays up for i dont know how long, but i never go hypo past the 90 minute mark (i do have a lot of carbs in by then though). theres no way to figure out how long the peak effect remains without going hypo but since the first peak time point fits my personal measurings EXACTLY, i go with this graph:
as you see, you basically started working out when insulin was already leaving your system.
its best to hit the weights between the 20 and 30 minute mark post injection imo. then you have your whole workout (lasting 60-90 minutes so up to the 120 min mark) covered.