AcuRite took a new approach with the AcuRite 00612 Wireless Temperature Station and Atomic Clock. They asked their customers what information they most often wanted from their instruments, and created an instrument that displayed that information prominently at the top of the display, available at a glance. The result is the 00612, with outdoor temperature displayed in large, bold characters at the top of the unit.

Features at a glance:

• Indoor/Outdoor Temperature
• Temperature Trend
• Daily High Low Temperature
• Self setting, high accuracy atomic clock
• Large, Easy to Read Display
• Powerful Wall Penetrating Signal

Upper Display. Outdoor temperature is prominently displayed in the upper display window in bold, highly readable1 inch characters. You may choose temperature in °F or °C. Also displayed in the upper window are a signal strength display, indicating the strength of the signal received from the remote wireless temperature sensor, and a temperature trend icon. 

Lower Display. At the top of the lower display are displays for high and low outdoor temperature reached within the last 24 to 48 hours, in 3/8 inch characters. Below the high/low temperature display is the time display. The Acu-Rite 00612 has Atomix clock functionality. The 00612 can receive WWVB radio broadcasts carrying timing information from the US atomic clock source in Colorado. As long as the WWVB signal reaches the 00612, the time display will be accurate to a fraction of a second, and DST changes will be automatic (DST changes may be optionally disabled). Time is displayed in 12 hour mode in 5/8 inch digits, along with a WWVB signal strength indication. At the bottom of the lower display is the indoor temperature display in 3/4 inch digits.

Specifications:

• Indoor temperature measuring range:
  +32°F to +122°F (0°C to +50°C)
• Outdoor temperature measuring range:
  -40°F to +158°F (-40°C to +70°C) 
• Resolution: 
  1°F/C
• Remote sensor transmission range: 100 feet (33 meters) maximum in open space with no interference
• Clock display:
  12 hour
• DST:
  Automatic (may be disabled)
• Time zones:
  Eastern, Central, Mountain, Pacific
• Main unit power requirements: three AA (1.5V) alkaline batteries
• Remote temperature sensor power requirements: two AA (1.5V) alkaline or Lithium batteries
• Main unit dimensions:
  Width: 3 5/8 inches
  Height: 5 1/2 inches 
  Depth: 1 1/4 inch (without stand)

Note: The AcuRite 00612 has "atomic" clock functionality. Atomic, or radio controlled, clocks receive a radio signal to set themselves. Like any radio receiver, however, they may not be able to receive the signal if they are in a building with a lot of steel in the structure, near computers or other electrical equipment that may generate interference, or if the weather is unsuitable. The signal they receive does not propagate well during the day. That's the nature of the signal, not the clock. These clocks are designed to catch the signal when they can, generally in the middle of the night, calibrate themselves, and then run quite accurately for days until they can catch another signal. When you first put in the batteries, they will most likely not set themselves until the middle of the night. That's normal. By morning, weather permitting, it should be correct. Under less than ideal conditions, it could take a few days. Also, Daylight Saving Time changes may not be made the first night if location and weather are not favorable.