Avianweb Digital Thermo Hygrometer, Mini, Black Digital Display of Temperature (in Fahrenheit) and Humidity. Small and Compact - Perfect even for mini incubators and other small spaces! Temperature: Measuring temperature range: -58F-+158F; Accuracy 0.1oc / 0.2of, ; 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 Unit Size: ~ 2"w x 1"h x 0.5"d (48mm*28.4mm*15.8mm); Display Size: ~1.3" x 0.6" (35mm x 16mm) ... Net weight: 0.7oz/19g. 2 batteries included Quality Certifications: RoHS CE. 1-Year QUALITY GUARANTY! Technical & Warranty Support provided by Avian web