The only trouble with IR-based temp gauges is the emissivity adjustment. You are supposed to adjust it for the material and color of the surface you are measuring. Polished aluminum will give you a different reading than black anodized aluminum for the same temperature. For this reason, I would prefer a contact-style temperature probe.
^^^ see like i said mine could have been faulty for it only lasted 2 months. And yes it was not the battery I also did not know you had to CHANGE the emissivity per material. I knew you could change it but never knew why.