HTC-2 Digital Thermometer Hygrometer Electronic Temperature Humidity Meter and Clock Buy One Get One Free Product Specifications: Color: Black and White Temperature measurement range: -10 deg. C sim +50 deg. C (-14 deg. F sim +122 deg. F ) Temperature measurement accuracy: plus minus 1 deg. C (1.8 deg. F) Temperature resolution: plus minus 0.1deg. C (0.2 deg. F) Humidity measurement range: 10 % sim 99 % RH Humidity measurement accuracy: plus minus 5%RH Humidity resolution: 1% Battery: 1 x AAA 1.5V (INCLUDED ) Package Included: 2 x Digital LCD Thermometer Hygrometer, Instructions and (2) AAA Battery Please Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience! Note:1. The temperature displaying mode shifting button for C/F is at the back, under the rear stand, use a pen to poke the hole (down, up is reset), you will hear a beep. Thermometer monitor measures temperature which can be displayed in Fahrenheit or Celsius. Press "Memory" shows maximum and minimum readings recorded, shift them at the back. 2 lines to display the in/out temperature, with a 1.5m probing cable(detecting temperature only), you can get more accurate parameters in some places, like aquarium, machines, library, laboratory, etc. Large LCD screen display readings can be easily read in distance, even the elders. This portable 3-in-1 hygrometer combines thermometer, clock, and hygrometer together, very practical for home or industry. The clock display 12/24 mode convertible, alarm on/off, time/date, all adjustable and resettable, long press then adjust. Wireless design and just a AAA battery operated, low battery consuming products. Accurate sensor module, monitoring your room temperature and humidity. You can put it on your desk using the back kickstand or mount it on your wall via the back screw slot.