I use one called Good Cook. I think I got it from Wal-mart. It's designed to weigh food so it comes with a square bowl that an adult dragon fits in, but if he is fiesty you'll want to put hi in a pillow case to keep him still while you weigh him.
we bought a digital postal scale, & use a small rubbermaid tote to put our dragons in. Most digital scales have a tare button, put your empty container on the scale, push the button and it will zero out, then put your dragon in & it shows actual weight of dragon only. No math needed that way, makes it really easy.
Clapton is acclimating okay I think. He's quick as lightning so I'm not sure how much I should bring him out of his house yet. He's not at all interested in his salad though. I wonder if I should change what I'm giving him. Least he's eating his crickets.
Things to do:
Buy calcium powder
Material to raise surface for basking spot
Scenery decals for back of tank