Bought this and decided to test it before using it in an application where an accurate temperature reading was crucial. Although I own a fantastic instant thermometer (Thermapen) I wanted something I could clip onto a pot while cooking to measure temperature. I brought water to a full rolling boil and inserted the Taylor thermometer. Despite the words "instant read" on the package it took 25-30 seconds for the temp to climb to 180 degrees....water boils at 212 degrees. I put my Thermapen into the boiling water and within 4 seconds the temperature registered 212 degrees. I left the Taylor in the boiling water for 2 minutes and the temperature never rose above 185 degrees.Stay away from this item if you need accuracy or speed. If you want a slow inaccurate reading then this is the product for you.