When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If it needs to increase the reading it will update at about 1 degree every 2 minutes.
If it needs to decrease the reading it updates 1 degree every 10 seconds...
I may have the exact times skewed, but it is on the manual.