The 00593W Acu-Rite Wireless Weather Station is a sharp looking weather center and full featured atomic moon phase alarm clock. Finished in a silver finish with Titanium gray trim, the 00593W Acu-Rite looks equally good at home sitting on the mantel, on a desk, or hanging on a wall. The upper portion of the display of the 00593W Acu-Rite provides weather data, including indoor and outdoor temperature and humidity, a weather forecast icon, barometric pressure reading, and barometric pressure bar graph history.

Upper Display. Indoor and outdoor temperature and humidity are displayed in big, bold digits on the left side of the upper LCD display, along with outdoor trend indicator arrows. Digits are about 7/8 inch tall.  Pressing the "MIN/MAX" button will bring up the high and low indoor and outdoor values for the last 24 hours (auto resetting). Up to three wireless remotes (one is included) may be used to monitor conditions at additional locations. The "CHANNEL" button is used to select which remote is being displayed. The right side of the upper LCD panel contains the remaining weather displays. At the top is the weather forecast icon: Sunny, Partly Cloudy, Cloudy, or Rainy (which predicts snow in cold conditions). If heavier storms are predicted, the Rainy icon flashes. The pressure-based forecast is for the next 12 to 24 hours and is 70% to 75% accurate. Below the forecast icon is the numeric barometric pressure. Here you can view the current pressure or the pressure at 1 to 19 hours in the past. Below this is a bar graph history display that indicates pressure changes for 0, 1, 2, 3, 6, and 12 hours in the past.

Lower Display. At the left of the lower LCD panel is displayed moon phase, date, and day of the week. On the right is clock time as hour and minutes in big, bold digits about 1 1/8 inch tall, and seconds in smaller 5/8 inch digits. Above seconds is a tower and waves icon that appears when the 00593W's atomic clock successfully synchronizes to the WWVB time signal. The clock time display area doubles as an alarm time setting and display area. An alarm bell icon indicates that the alarm is on. 

Atomic Clock. The atomic clock in the 00593W sets itself automatically and can adjust automatically for Daylight Saving Time (DST). This clock keeps perfect time by calibrating itself to radio signals containing time information transmitted by the official U.S. atomic clock source in Boulder, Colorado.

The Acu-Rite 00593W includes a wireless remote temperature and humidity sensor with detachable wired probe. Additional sensors may be purchased in order to monitor up to two additional locations. If the outdoor temperature drops below 20 degrees for extended periods, it is recommended that you use Lithium batteries in the remote..

Features:

• Integral atomic clock receives 60 kHz WWVB time-synchronization radio signal from U.S. atomic clock in Colorado.
• Automatic time adjustment (including Daylight Saving Time changes) and date adjustment occur after signal reception.
• Radio tower and waves icon indicates successful signal reception.
• U.S. time zone is user-selectable for Pacific, Mountain, Central, or Eastern.
• Automatic DST changes can be disabled if your location does not observe DST.
• Clock can be manually set if desired.
• Time is displayed as hh:mm:ss in 12-hour format with PM.
• Month, date, weekday, and moon phase are also displayed.
• Clock has a daily alarm with available 5-minute snooze function.
• Wireless 433MHz transmission of outdoor temperature and humidity data to main station from remote sensors.
• One thermo-hygro sensor is included. Station can work with up to three thermo-hygro sensors
• Main unit displays the following weather data:
  • Indoor temperature and humidity.
  • Outdoor temperature and humidity with trend arrows.
  • Weather forecast icon.
  • Barometric pressure and pressure-change history bar graph.

• Temperature unit is user-selectable for °F or °C.
• Barometric pressure unit is user-selectable for inHg or mb/hPa.
• Main unit displays low-battery icons for itself and remotes.
• Main unit can be wall-mounted or free-standing.
• Remotes can mount on a vertical surface via included screws and wall anchors.

Specifications:

• Indoor temperature measuring range:
  +32°F to +122°F (0°C to +50°C)
• Outdoor temperature measuring range:
  -4°F to +158°F (-20°C to +70°C) 
  -22°F to +158°F (-30°C to +70°C) using the low temperature probe
• Indoor/Outdoor Humidity:
  20% to 99% RH
• Barometer: 900 to 1050 mb/hPa
• Resolution: 
  Temperature 0.1°F/C
  Humidity 1%
  Pressure 1 mb hPa
• Remote sensor transmission range: 100 feet (33 meters) maximum in open space with no interference
• Main unit power requirements: two AA (1.5V) alkaline batteries
• Thermo-hygro remote sensor power requirements: two AAA (1.5V) alkaline batteries
• Main unit dimensions:
  Width: 10-1/8 inches
  Height: 7-3/4 inches 
  Depth: 1 inch

Note: The Acu-Rite 00593W weather station 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.