Thermo Hygrometer, Certification : ISO Certified

Temperature Range : -50°C ~ 70°C (-58°F ~ 158°CF) Temp. Accuracy : +0.5°C (0°C ~ 40°C) or +1% Humidity Range : 10% ~ 99% RH Humidity Accuracy : +3% RH (50% ~ 80%)or +5% Battery: AAA 1.5V. Time / Temp / Humidity indicate. Temp. Reading for °F & °C. MAX and MIN Temperature and Humidity Memory. Calendar with Alarm Clock.