The La Crosse Technology WS-8010U-DBS Giant Wireless Weather Station displays indoor and outdoor temperature plus indoor and outdoor relative humidity. It also has a weather-forecasting feature with three indicator icons and two pressure tendency arrows. Outdoor temperature and humidity are transmitted to the station via the included TX4U remote sensor. The station can actually receive signals from a total of three remote transmitters, one of which can be a rain gauge (additional transmitters are optional and sold separately). The station's incredibly accurate radio-controlled atomic clock has local and world (hour-offset) time displays and a calendar display, each with several selectable display modes.

The WS-8010U-DBS simultaneously displays indoor and outdoor temperature and humidity. If you're using more than one remote thermo-hygro transmitter, you will have to select the desired channel for the outdoor temperature and humidity display. The station keeps a record of the minimum and maximum indoor and outdoor temperatures and humidity it has recorded (since the last memory reset) along with the times and dates of occurrence. These are available at the push of a button. You can easily reset the temperature and humidity memory any time you want.

The station's weather-forecasting feature senses barometric pressure over time and adjusts the three indicator icons to provide accurate forecasts based on pressure trends. Also displayed is a pressure trend (up or down) arrow if the pressure is changing at significant rate.

Not only will the station operate with up to three remote temperature or temperature-humidity transmitters, four different transmitters are available. The TX4U (the one included with the station) reports outdoor temperature and humidity. The TX3U reports outdoor temperature and has an integral LCD display for viewing at the installation location.  The TX3UP senses temperature via a probe for use in pools, spas, soil, etc., and has an LCD display like the TX3U. The TX6U reports outdoor temperature but has no LCD display of its own.

In addition to a maximum of three temperature or temperature-humidity transmitters, the WS-8010U-DBS can operate with a TX5U wireless rain gauge. The TX5U reports rainfall amounts to the WS-8010U-DBS main unit, which can display total rainfall up to the TX5U's 99.9-inch maximum and also the rainfall amount for the last 24 hours. When selected for display, the rainfall amounts appear in the station's LCD panel where calendar information is normally displayed.

The station's clock calibrates itself to the world's most accurate clock every night by receiving WWVB radio transmissions. These transmissions contain time information from the U.S. atomic clock source, operated by the U.S. Commerce Department near Boulder, Colorado. The built-in antenna ensures reliable signal reception up to 2000 miles (3200km) from the WWVB transmitter.

The clock's primary time display is the graphic time display with an hour arrow and minute dots around the perimeter of the LCD panel. Four graphic time display options are available:

• Flashing hour arrow points to the current hour of local time, and minute dots line the perimeter of the LCD panel. Minutes that have passed remain on the screen as minute dots that do not flash. The current minute dot flashes at the position that represents the current minute of local time.

• Flashing hour arrow points to the current hour of local time. The current minute dot flashes at the position that represents the current minute of local time.

• A steady (not flashing) hour arrow points to the current hour of local time. A steady (not flashing) minute dot is displayed at the position that represents the current minute of local time.

• Flashing hour arrow points to the current hour of local time. The minute dots start at zero and count up by fives until they reach the current minute of local time. Once the current minute has been met, the minute dots disappear and then begin once again to count up by fives continually repeating the process.

The clock's world time feature allows you to set a second, hour-offset time ("world time") for another time zone. For example, if you live and work in Los Angeles and your company has an office in Bombay, you can know at a glance what time it is there. World time is displayed digitally above the middle of the weather forecast icon between the indoor temperature and indoor humidity. Actually, this time display has three available modes:

• World time can be the time shown constantly.

• Local time can be the time shown constantly.

• World time and local time can alternate at 5-second intervals. The word TIME always appears below the time display, and the word WORLD appears above the time display when world time is being displayed.

The calendar display on the WS-8010U-DBS has two selectable options (in addition to the rainfall alternatives mentioned above). These are as follows:

• Numeric month/date/year.

• Weekday/month/date, with the weekday abbreviation in any of 8 selectable languages: English, French, Italian, Dutch, Danish, Spanish, Japanese, or Italian.

A radio tower and wave icon in the WS-8010U-DBS's LCD panel indicates WWVB time signal reception, and a satellite icon indicates signal reception from a selected remote transmitter. The LCD panel on the WS-8010U-DBS can be set for any of 8 levels of contrast for optimum viewing.

The WS-8010U-DBS has a dark blue molded case with a silver bezel around the LCD panel. On the bezel are white hour numbers plus smaller minute/second numbers "on the fives." The station's case actually curves in and out so that the lower left and top right corners of the bezel project out from the case while the other two corners are nearly flush with the case. The curved case not only adds visual interest, it also allows the three most frequently used control pushbuttons to be mounted on the lower left side of the bezel, out of direct sight but really easy to access. The functions of these three buttons (which the manufacturer calls "keys") are printed on the back of the case behind the buttons for easy reference. The other two control pushbuttons are on the back of the station.

The WS-8010U-DBS main unit is powered by three C (1.5V) alkaline batteries, and the TX4U remote is powered by two AA (1.5V) alkaline batteries. The batteries are not included and must be purchased separately. Expected battery life for both the main unit and the TX4U is approximately 1 year. If you will be using the TX4U remote in sub-freezing temperatures, we recommend using lithium AA batteries instead of alkaline. Lithium batteries retain power to about -40°F (-40°C).

With its generous complement of features and options, the WS-8010U-DBS weather station is an excellent choice for serious weather watchers. Whether you use it in your home or your office, this station's large size and bold styling will definitely attract attention. As you might expect of a weather station of this type and size, the WS-8010U-DBS is strictly a wall-mount unit. The TX4U remote is also wall-mount only.

• Clock sets automatically to WWVB radio signal (manual setting is also possible).
• 12-hour or 24-hour time mode (hour and minute) for the digital world/local time display.
• Graphic time display at the perimeter of the LCD panel has 4 selectable display modes.
• 6 selectable North American time zones: Atlantic (-4), Eastern (-5), Central (-6), Mountain (-7), Pacific (-8), and Alaska (-9).
• Clock automatically adjusts for daylight saving time.
• DST time changes can be disabled if you live in an area (Indiana or Arizona) that does not observe DST.
• Calendar display has two selectable display modes.
• If optional TX5U rain gauge is used, rainfall information can be displayed as an alternative to the calendar display.
• Station displays indoor and outdoor temperatures simultaneously.
• Integral temperature memory records minimum and maximum indoor and outdoor temperatures for display at any time.
• All minimum and maximum temperature recordings show date and time received, and the memory is resettable whenever desired.
• Temperature indications are selectable for either °F or °C.
• Three weather-forecasting icons.
• Two barometric pressure tendency arrows (up and down).
• One remote temperature and humidity transmitter is included; additional temperature or temperature-humidity transmitters are optional and sold separately.
• Main unit can receive and display information from up to three outdoor temperature or temperature-humidity  transmitters.
• Main unit can also receive and display information from one optional TX5U wireless rain gauge.
• LCD panel has 8 selectable contrast levels.
• A low-battery indication is provided.
• Station is powered by three C (1.5V) alkaline batteries (not included), with average life of about 1 year.
• Remote transmitter powered by two AA (1.5V) alkaline batteries (not included), with average life of about 1 year. (For use in sub-freezing temperatures, lithium batteries are recommended instead of alkaline.)
• Both main unit and remote transmitter are wall-mount only.

• Radio-controlled time signal: WWVB, 60 kHz
• Indoor temperature measuring range:
  32° to 139.8°F with 0.2°F resolution
  (0° to 59.9°C with 0.1°C resolution)
  ("OFL" is displayed if outside this range)
• Outdoor temperature measuring range:
  -21.8° to 157.2°F with 0.2°F resolution
  (-29.9° to 69.9°C with 0.1°C resolution)
  ("OFL" is displayed if outside this range)
• Indoor temperature checking interval:
  every 10 seconds
• Outdoor temperature checking interval:
  every 1 minute by remote, with outdoor temperature reception by station every 5 minutes
• Station dimensions (without table stand):
  15.59 inches (396 mm) wide
  14.46 inches (367 mm) high
  1.45 inches (37 mm) deep

Remote Thermo-Hygro Transmitter (TX4U) Specifications:

• Remote transmission of outdoor temperature and humidity to station via 433 MHz signals
• Recommended operating temperature:
  -25° to 158°F (-31.6° to 70.0°C)
• Temperature measuring range:
  -21.8° to 156.2°F with 0.2°F resolution
  (-29.9° to 59.9°C with 0.1°C resolution)
• Relative humidity range:
  20% to 95% with 1% resolution
• Checking intervals:
  Temperature: every 5 minutes
  Relative humidity: every 5 minutes
• Transmission interval: every 10 seconds for first 3 minutes, every 1 minute thereafter
• Transmission frequency: 433.92 MHz
• Transmission range: 80 feet (25m) in open space with no interference
• Wall mounting
• Power source: two AA (1.5V) alkaline batteries (not included)
• Remote transmitter dimensions:
  1.6 inches (40 mm) wide
  4.3 inches (110 mm) high
  0.8 inch (20 mm) deep (not including mounting bracket)
• Rain protector dimensions:
  2.24 inches (57 mm) in diameter
  4.7 inches (120 mm) high
• Remote transmitter dimensions with rain protector installed and including mounting bracket:
  2.24 inches (57 mm) wide
  4.88 inches (124 mm) high
  2.87 inches (73 mm) deep