Here's a pretty good video on how to home test...there are bunches of them on YouTube
If you live in the US, WalMart has the cheapest meters that a lot of us use called the Relion Confirm or Micro....it's about $15 ...the nice thing about those 2 meters is they use the tiniest blood sample (and I mean you really only need a pin-head sample size) The replacement strips are $35.88 for 100
You'll need a box of lancets (whether you get a lancet device too is up to you)....I just freehand with the lancet so I don't use the device. I feel like I can control where I poke better by freehanding. The lancets you should get should be 25-28gauge lancets (made for "alternate site testing", but they'll make the biggest "hole" until the ears "learn to bleed"). I think I can just look at China's ears now and they'll start bleeding...LOL
A bag of cotton balls or cosmetic pads are great for staunching the blood after poking, and a little Neosporin with Pain Relief ointment can really help too
Here's my "testing tips"
It can be really helpful to establish a routine with testing. Pick one spot that you want your "testing spot" to be (I like the kitchen counter because it's got good light and it's at a good height....it also already blocked 2 escape routes due to the wall and the backsplash) It can be anywhere though...a rug on the floor, a table, a particular spot on the couch...wherever is good for you. Take him there as many times a day as you can and just give his ears a quick rub and then he gets a yummy (low carb) treat. Most cats aren't objecting so much with the poking..it's the fooling with their ears they don't like, but once they're desensitized to it and learn to associate a certain place with the treats, they usually start to come when they're called! Or even when they hear us opening the test kit!
You also have to remember...
you're not poking him to hurt him...you're testing him to keep him safe and understand what's going on inside his body. There's just nothing better than truly understanding what's going on inside your kitty's body and with this disease, the more knowledge you have, the more power you have against it. The edges of the ears have very few pain receptors, so it really doesn't hurt them. Also, if you're nervous and tense, it's going to make your kitty nervous and tense too. As silly as it might seem, try singing! It forces you to use a different part of your brain!
It's also important to make sure his ear is warm. A small sock filled with a little rice and microwaved or a small pill bottle filled with warm water (check temp against your wrist like you would a baby bottle) works well