Wrenwane Hygrometer Humidity Sensor Indoor Room Thermometer Fahrenheit Or Celsius White SIMPLE DESIGN - The Digital Hygrometer Sensor is an attractive but simple designed unit with no over-complicated controls. Can be placed on any flat tabletop surface. The unit itself is white. CLEAR DISPLAY - The display is clear and boats large digits, perfect for monitoring across the room. VERY SIMPLE TO OPERATE - No instructions necessary. This is the simplest electronic hygrometer on the market with only two buttons. CELSIUS/FAHRENHEIT - The Humidity Monitor can display Celsius or Fahrenheit as well as High/Low recorded values. BATTERIES - The unit takes two LR1130 batteries. The battery is included.