Features a water resistant design, last reading memory and is dual scale (C/F) switchable. Compact size under 5″ long, weighs just 11 grams. Range 90°F-109.9°F ±.2°F or 32°C-43.2°C ±.1°C depending upon scale selection. Replaceable 1.55v (LR41) type battery provides up to 1,500 measurements. Scabbard carry case keeps instrument sanitary.