got my rack done its just s trial before i build a bigger one heres my problem and questions...

running a helix thermpstat the 1000 ..
for temp gauges i tried temp guns and everything and cant seem to find something good what brand do you recomend?? and gun or digital temp?

heres my problem ..

helix is set to 98!!!!! the rubber prop thing it taped right to the heat tape right on the black part with foil tap. right next to that i have a digital temp gauge taped on the same black one the helix is set for 98 and the temp gauge reads 92-93F .. is this normal for it to be that much out the helix ?

then inside the tank its read 90F un the hot floor witch is a good temp ... so i dont know if i should trust the digital temp gauges i got or the helix temp...

right now im using zilla and coral life digital temp gauges i tried master craft heat guns as well and they all ready 5-10F different then what the helix is set for right on the helix prob!! whats a good name to go out and buy for moderiting the temp and is this normal for the helix to be out like this ?