OK, I heard of people being able to tell by the girth and claw size. I will try to get a better closeup with no glare. It was trying to walk up the glass for a long time yesterday but it hasn't been active yet today. I have enough coco fibre to triple the amount which should bring it to the minimum. I tried to do the false bottom thing but I did not read to put a sheet or mesh over the rocks but whatever. I just have a temporary lid right now made from a fluorescent lens cover because it was formerly a fish tank, I want to get my hands on some Plexiglas. I finally got the humidity up today by putting the heat lamp on the side instead of the top and filling the gap the lamp took from the lid. The humidity skyrocketed from 40-80 in a few hours. I think I made it too wet when it was too ventilated to bring up the humidity. I want to get another Emperor, possibly a breeder once this one is settled and have my tank optimized.
+1 for the oval shape. looks oval to meIMO the best way to ID sex on Pandinus species is to look at the genital operculum.
If its oval its a male, heart shaped female.
Its hard to tell... but from the first picture I would say you have a Male.
Get a close up of the genital operculum and the pectines.