PCE-330 is a multifunction humidity detector with a quick-response sensor for determining ambient temperature, relative humidity and dew point temperature. Equipped with an easy-to-read dual display, this data-logging indoor air quality (IAQ) meter features a large internal memory with storage for up to 16,000 recorded values. - Temperature range: -20 … 60C / -4 … 140F - Relative humidity range: 0 … 100% RH - Resolution: 0.1 / 0.18F - Accuracy: 0.8C / 1.5F, 2.0 … 4.0% RH - Internal memory: up to 16,000 date- and time-stamped readings