Model Number: RFT9882 Key Specifications/Special Features: Room thermometer and hygrometer with clock1) Measure surrounding temperature and humidity2) Indoor temperature range: -10C to 50C (14F-122F)3) Outdoor temperature range: -50C to 70C4) Temperature accuracy: ±1C (1.F), Humidity accuracy: +-5%5) Humidity range: 10%RH-99%RH6)C /F display conversion7) Date and clock & calendar display8) Backlight9) Max and min memory10) Power supply: one AAA 1.5V batteryPackaging: 1pc/color box, 72pcs/cartonCarton size: 54.5*27.0*37.0cmG.W: 15kg