Nemesis94 Nemesis94
  • Just can't stay away
  • Just can't stay away
  • Joined: 26/10/2007 21:27
  • From South Yorkshire
  • Group: Registered Users Basic Membership
  • Posts: 104
  • Posted on: 1/1/2008 12:58
Beware! #1
Just a little warning to be on your guard folks. my kids bought me a digital tank thermometer for Xmas. Being an engineer I tend to try stuff before relying on it so I ran it in the tank along side my 'old fashioned' glass one. I noticed quite a discrepancy between the 2. Luckily I have a full range of calibrated test equipment for use in my work so I did some checks with that.

The digital thermistor is 7....thats seven!! degrees out!!!
Were this to have been my sole means of measure I would almost certainly have killed my stock trying to get the temp 'right'

The glass one is <1 degree out.

Please check you kit guys.

'Modern' is not always better....
:)