Features Wide application: You can use it in your living room, bedroom, study room, office, kitchen and so on place.With large LCD display screen, so you can see the data more clearly, give you a better using experience. Different background colors correspond to different values for easy, accurate and quick readings.Two sets of alarms can be set, alarm 1 to wake you up and alarm 2 as a preparatory option in order to avert you dont hear alarm Temperature and humidity over the limit alarm function: over the upper limit backlight is orange yellow, over the lower limit backlight is red. Specifications: Material: ABS Color: white, black (optional) Power su-pply by: 3 * AAA battery (not included) or direct current 5V Packing list:1 * Temperature and Humidity Meter 1 * User Manual1 * USB Cable