probably a dumb question

Ok so i have the vivarium electronics ve-300 that i setup today i have it set at 93 and i have the probe sitting on top of the flex watt and i have a three shelf rack system the probe is in the middle shelf, well all of my thermometers aren't reading 93 the top shelf is reading 89.2 and its the zilla digital thermometer with a probe i have it inside the tub under the newspaper on the hot side.Now on the middle rack i have another thermometer the same zilla one on top of the flex watt right next to the probe for thermostat and its reading 87.4.So my question is i know my thermometers aren't that great could it just be them reading wrong and its really 93 in the tubs or should i not really worry and is the temps that the thermometers reading ok to have if say they are right.And btw i did have it set to 95 and the thermometer inside first tub was reading 90. something.

Sorry again because i know this is like a really dumb question lol.
Should i just get a temp gun?

temp guns cant hurt, but also remember that hot air rises, even in my bedroom, at eye level its like 70, and at knee level its more around 65, so that can have a slight effect, but i wouldnt worry about the different readings, all thermometers are going to be a little off

Yeah after i posted it i read it over and kinda answered my own questions lol maybe its time for bed haha