Product Details2-1/16" E.G.T. Pyrometer 0-1600`F, Elec, Z-Series Pyrometer Product #: 2653 Size: 2 1/16" (52.4mm) Type: Full Sweep Electric Range: 0 - 1600 deg. F Notes: Air-Core meter movement. Requires purchase of probe. Use model 5244 or other Type K probes in the Accessories Section.