This is a stylish unit ideal for a desk top. It features an outdoor remote transmitter that displays temperature and humidity itself, which is handy when you are outdoors and need to know these things. The transmitter requires 2 x AA batteries. It has a hook hanger but will sit up on a flat surface. Range 30-50m. The console unit has a high contrast 125(diagonal) x 70(W)mm monochromatic display with a pleasant amber backlight. It also has an alarm with snooze function, and the ability to have 3 sensors transmitting data to the display unit for monitoring 3 environments at once, such as your garage, kids room or pantry.