This is my experience:
Trust the Brinsea spotcheck over anything and everything. If you put your finger in boiling water next to the thermometer, trust the Spotcheck to tell you whether it hurts or not.
If you don't have one of those, I trust my LG one that I bought. (It's more accurate than Hova's and Wallyworlds') I calibrated it with my Genesi (Plural of genesis?) incubators and it checekd out.
That's just my opinion.
Trust the Brinsea spotcheck over anything and everything. If you put your finger in boiling water next to the thermometer, trust the Spotcheck to tell you whether it hurts or not.
If you don't have one of those, I trust my LG one that I bought. (It's more accurate than Hova's and Wallyworlds') I calibrated it with my Genesi (Plural of genesis?) incubators and it checekd out.
That's just my opinion.