Avianweb AV-1951HT Digital Mini Instant-Read Temperature (Fahrenheit) & Humidity Gauge Thermometer (Hygrometer) Most Popular Applications for Cars, Incubators and Brooders, Black Clear and intuitive digital display of temperature (Fahrenheit) 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: -58F-+158F; Temperature accuracy: 2F; Resolution: 0.2F (0.1C); Temperature display resolution: 0.2F (0.1C) Humidity: Range:10%RH~99%RH; Humidity accuracy :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 PLEASE NOTE: Units by other Sellers are NOT SUPPORTED by Avianweb. They are not same quality or the same display. Customers advised us that they are sending out unreliable units that are not supported by warranty.