Features: Thermometer humidity meter is mechanical and has a longer life expectancy. You don'for t worry about cold weather draining the battery since the analog work well and no batteries needed replacing. The temperature humidity gauge of small and compact shows both the temperature and humidity accurately. Thermometer from -20 and 120, humidity from 0 to , which could accommodate all kinds of climates. Thermometer hygrometer indoor is nice for your home, humidors, greenhouse, garden etc. It can be hidden nicely in any small space, which ensure optimal temperatures and humidity. Accurate precision dial thermometer indicator have the transparent cover and the colorful board, which shows more simplicity and elegance. Stylish makes it a great decoration. Temperature humidity indicator with mounting bracket can be both hang on the wall or stand on the table. Indoor temperature humidity monitor doesn'for t take up a lot of space, and it is accurate and functional as a perfect gadget for professionals. Specifications: Material: ABS Size: 89x75x20mm/3.5x3.0x0.8 inches Measuring range: -20~120F (-30 ~ 50C), 0~ 100%RH Temperature measurement accuracy: +/-5F (+/-2C) Humidity measurement accuracy: +/-7% (40% ~ 70%RH) Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Mini Thermometer Hygrometer