Bi-Therm® Pocket Thermometer, dial, 0° to 220°F (-10° to 100°C) temperature range, 1-3/4" superior grade dial, with 8" stem, +/- 2°F/1°C accuracy of entire range, high-visibility dial, with vessel clip, anti-parallax dial/case, extended scale design, 3 point calibration, shock protection, recalibratable, stainless steel exterior, NSF