La Crosse Technology WS7390TWC Wireless 433 MHz Weather Station with Atomic Clock

  

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La Crosse Technology WS-7390TWC Wireless 433 MHz Weather Station with Atomic Clock


Wireless Indoor Outdoor Thermometer Displays Remote Temperature Radio Controlled Atomic clock Digital Thermometer Records and Displays Minimum and Maximum Temperature Atomic Clock Displays Time Weather Station Displays Moon Phase Digital Thermometer Displays Indoor Temperature Hygrometer Displays Indoor Humidity Wireless Indoor Outdoor Thermometer Displays Outdoor Temperature Digital Hygrometer Displays Outdoor Humidity
Digital Thermometer Selectable for Fahrenheit or Celsius Weather Station Displays Weather Forecast Atomic Clock Displays Date Atomic Clock Displays Day Of Week
For definitions of the feature icons, please click any icon.

The La Crosse Technology WS-7390TWC is a version of the the WS-7390U that bears the logo of and has been available from The Weather Channel. This wireless weather station displays indoor and outdoor temperature plus indoor and outdoor relative humidity. It also has a moon-phase display with tide indicator and a weather-forecasting feature with three forecast icons. Outdoor temperature and humidity are transmitted to the station via the included TX4U remote sensor/transmitter. The station can actually receive signals from a total of three remote sensors (additional remotes are optional and sold separately).


La Crosse Technology WS-7390TWC Wireless 433 MHz Weather Station with Atomic Clock

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Styled as a silver bulb-type thermometer in a dark blue plastic case, the wall-mount WS-7390TWC has plenty of convenient features, including an atomic clock. In addition to day/date/time and moon phase with tide indicator, the station displays indoor temperature and humidity, outdoor temperature and humidity (via an included remote transmitter), forecasting icons, and indoor comfort level. Install one or two optional remote transmitters, and get temperature and humidity data from additional locations.

Almost 18 inches tall and over 6 inches wide, the station is dark blue and silver in color and is intended for wall mounting only. Its LCD displays are large for easy reading, and the LCD display contrast can be adjusted for any of 8 different levels.

The station's incredibly accurate radio-controlled atomic clock has day/date/time displays. Time can be displayed as 12-hour or 24-hour, and the clock can be optioned to automatically adjust for daylight saving time.

The station's weather-forecasting feature senses barometric pressure over time and adjusts the indicator icons to provide accurate forecasts based on pressure trends. Another clever feature of the WS-7390TWC is an indoor comfort level indicator with happy and sad face icons.

The station keeps a record of the minimum and maximum indoor and outdoor temperatures and humidity it has recorded, and these are available at the push of a button.

Not only will the station operate with up to three remote sensor/transmitters, three different remotes are available. The TX3U reports outdoor temperature only. The TX4U (the one included with the station) reports both outdoor temperature and humidity. The TX3UP senses temperature via a probe on a 10-foot (3-meter) wire for use in pools, spas, soil, etc.

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.

Substantial in size with good looks and many convenient features, the WS-7390TWC is ideal for larger rooms and offices. (If you would prefer a black plastic case instead of dark blue, please check out the WS-7390U. Or, if you'd like a case trimmed in real wood, have a look at the three WS-7391U models instead.)


Features:

  • Clock sets automatically to WWVB radio signal (manual setting is also possible).
  • 12/24 hour time display (hour, minute, second).
  • Date (calendar) display.
  • Moon phase display with tide indicator.
  • Station displays indoor and outdoor temperature and relative humidity with minimum and maximum recordings and time and date of recording (resettable).
  • Temperature indication selectable for either F or C.
  • Three weather-forecasting icons.
  • Weather tendency indicators.
  • Indoor comfort level indicator with happy and sad face icons.
  • One outdoor temperature and humidity transmitter included; additional transmitters are optional and sold separately.
  • Can receive and display information from up to three outdoor transmitters.
  • LCD display contrast selectable for 8 different levels.
  • Station powered by two AA alkaline batteries (not included), with average life of about 1 year.
  • Remote transmitter (TX4U) powered by two AA alkaline batteries (not included), with average life of about 1 year.

Station Specifications:

  • Radio-controlled time signal: WWVB
  • Recommended operating temperature:
    32 to 122F (0 to 50C)
  • Indoor temperature measuring range:
    32 to 140F with 0.2 resolution and 2 accuracy
    (0 to 60C with 0.1 resolution and 1 accuracy)
  • Outdoor temperature measuring range:
    -21.8 to 139.8F with 0.2 resolution and 2 accuracy
    (-29.9 to 59.9C with 0.1 resolution and 1 accuracy)
  • Indoor and outdoor relative humidity range:
    20% to 95% with 1% resolution and 3% accuracy
  • Indoor checking intervals:
    Indoor temperature: every 10 seconds
    Indoor relative humidity: every 1 minute
  • Outdoor checking interval (remote sensor):
    Outdoor temperature: every 1 minute
    Outdoor relative humidity: every 1 minute
  • Outdoor temperature and humidity reception interval (indoor station): 5 minutes
  • Station dimensions:
    6.41 inches (16.3cm) wide
    17.71 inches (45.0cm) high
    1.22 inches (3.1cm) 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 158F (-31.6 to 70.0C)
  • Temperature measuring range:
    -21.8 to 156.2F with 0.2F resolution
    (-29.9 to 59.9C with 0.1C 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 (4.0cm) wide
    4.3 inches (11.0cm) high
    0.8 inch (2.0cm) deep (not including mounting bracket)
  • Rain protector dimensions:
    2.24 inches (5.7cm) in diameter
    4.7 inches (12cm) high
  • Remote transmitter dimensions with rain protector installed and including mounting bracket:
    2.24 inches (5.7cm) wide
    4.88 inches (12.4cm) high
    2.87 inches (7.3cm) deep

La Crosse Technology Weather Instruments TX4U Remote

La Crosse Technology Weather Instruments TX6U Remote

La Crosse Technology Weather Instruments TX3U Remote

La Crosse Technology Weather Instruments TX3UP Remote

TX4U TX6U TX3U TX3UP
One TX4U comes with the unit. The TX6U, TX3U and TX3UP may also be used with this unit, up to a total of 3 remotes.

Radio-Controlled Time:

The NIST (National Institute of Standards and Technology, Time and Frequency Division) maintains a radio station, WWVB, in Ft. Collins, Colorado. The WWVB radio station derives its signal from the NIST atomic clock in Boulder, Colorado. A team of atomic physicists is continually measuring every second of every day, to an accuracy of ten billionths of a second per day. These physicists have created an international standard, measuring a second as 9,192,631,770 vibrations of a Cesium-133 atom in a vacuum.

WWVB (the stations identification just like any other radio station) continuously broadcasts time and frequency signals at 60 kHz. The carrier frequency provides a stable frequency reference traceable to the national standard. There are no voice announcements on the station, but a time code is synchronized with the 60 kHz carrier and is broadcast continuously at a rate of 1 bit per second using pulse width modulation. The time code contains the year, day of year, hour, minute, second, and flags that indicate the status of Daylight Saving Time, leap years, and leap seconds.

The Integral Atomic Clock:

The atomic clock integral to the WS-7390TWC maintains its incredible accuracy by automatically tuning into the WWVB radio signal. The built-in antenna ensures reliable signal reception up to 2000 miles (3200km) from the WWVB transmitter. As a result, the clock will calibrate to the atomic clock not only throughout the mainland U.S. but also in much of Canada. You need only insert the batteries, wait until the signal is received, and program the desired additional settings. In locations outside of WWVB range, the clock can be manually set and will provide the high degree of accuracy of any quality quartz clock.

In a nutshell, here's how the the atomic clock works: The clock's antenna is specifically tuned for optimal reception of the 60 kHz time signal. The time signal received on the antenna is demodulated by an onboard receiver, which sends the information to the clock's CMOS microprocessor for decoding. Once your clock has automatically set its time for the first time, it ensures continuing accuracy by automatically tuning into the WWVB radio signal between midnight and 6:00 a.m. As long as your clock is kept within transmitter range, it will continue to display the absolutely precise time, automatically adjusting for summer time/winter time changeovers if the daylight savings time option is ON. Should you move your clock out of transmitter range for an extended period of time, the clock will continue to operate as a highly accurate quartz-controlled clock. Upon re-entering the transmitter range, your clock will correct itself again to the precise WWVB time signal.


Note: This unit has atomic clock functionality. The atomic clock can receive time broadcasts from the U.S. Atomic Clock transmitter in Colorado and synchronize itself to the U.S. Atomic Clock every night. As long as the signal is strong where the clock is located, the clock will maintain accuracy to a fraction of a second, and reset itself for daylight saving time (unless you choose to disable the DST function). However, if the clock is located where the signal is poor, due to metal in the construction of your building blocking the signal or due to electrical interference from nearby electrical appliances or computers, then the clock may not always receive an adequate signal. Under these conditions, the clock may still synchronize occasionally when weather conditions are ideal, or may need to be set manually.

Availability: Exact quantity available will be displayed in the shopping cart, after you click the button below.

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La Crosse TX3UP Remote Sensor with Display and Waterproof ProbeLa Crosse TX3UP Remote Sensor with Display and Waterproof Probepad
The La Crosse Technology TX3UP temperature sender has a waterproof probe and a temperature display on the sender. The La Crosse Technology TX3UP may be used to monitor soil temperature, pool temperature, hot tub temperature, freezer or refrigerator temperature, or may be placed indoors with the probe routed outdoors through a window for extreme climates. The TX3UP uses 2 AAA batteries.
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lacrtx3uppadRegular price: $27.95padSale price: $16.95, 2/$33.00pad
padLa Crosse TX6U Remote Sensor/TransmitterLa Crosse TX6U Remote Sensor/Transmitterpad
The La Crosse TX6U is the more common remote temperature only sensor for the La Crosse Technology weather instruments. The La Crosse Technology TX6U does not have a display of its own. The TX6U uses 2 AA batteries, and is excellent for use for extended periods of operation in cold temperatures. In harsh climates, the alkaline batteries in the TX6U may be replaced with Lithium batteries for extended low temperature operation.
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Availability: Exact quantity available will be displayed in the shopping cart, after you click the button below.

lacrtx6upadRegular price: $22.95padSale price: $16.95pad
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La Crosse Technology TX7U Remote Thermo-Hygro Sensor/TransmitterLa Crosse Technology TX7U Remote Thermo-Hygro Sensor/Transmitterpad
The TX7U Temperature and Humidity Sensor reports the outdoor temperature and humidity (or any other location whose temperature and humidity you wish to know) to the station. This remote sensor features its own LCD display for local viewing of the temperature in F and the relative humidity in percent. The remote has a water-resistant case, but it must not be installed in a location where rain can fall directly on it.
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lacrtx7upadRegular price: $28.95padSale price: $18.49, 2/$36.00pad
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