Clear and intuitive digital display of temperature and hygrometer values. This model has a larger Humidity Display - if you prefer to have a larger Temperature Display, please consider the MINI Thermo-Hygrometer - ASIN B00U2S6JSC (a search for this ASIN # on Amazon should pull this product right up) Perfect for use in incubators, brooders, cigar rooms any other place that requires monitoring of temperature and humidity levels Temperature: Measuring temperature range: -58Â°F-+158Â°F (-50Â°C~70Â°C); Temperature accuracy: Â±2Â°F (Â±1Â°C); Resolution: 0.2Â°F (0.1Â°C); Temperature display resolution: 0.2Â°F (0.1Â°C) Humidity: Range:10%RH~99%RH; Humidity accuracy :Â±5%RH; Humidity display resolution: 1%RH. Quality Certifications: RoHS CE certification (it satisfies all the norms of European health, safety and environmental directives) / Unit Size: ~ 2" wide x 1" tall x 0.5" deep (48mm*28.4mm*15.8mm); Display Size: ~1.3" x 0.6" (35mm x 16mm) ... Single product net weight: 0.7 oz or 19g QUALITY IS GUARANTEED! If your unit does not perform as expected, please contact us for an exchange. These units are guaranteed for One Year.