Sounds like you are good to go then. Also calibrate the top end of the thermometer in boiling water. One of your best friends in brewing will be high quality instruments. Relying on cheap thermometers, pH meters, scales and the like will cause problems. I have some cheaper stuff, such as a cheap made in China sold on eBay gram scale, but I know its accurate as I have a high end reloading scale and high precision calibration weights I can use to gurantee its accuracy. Its also a good idea to have backups if you need them, I can always double check my Ranco digital thermometers if their probe gets messed up.