IV. Features & Operations

A.FEATURES

1.Radio-controlled time

2.Projection of time and/or remote temperature

3.LED backlight

4.Display of indoor temperature/humidity or alarm time

5.Indoor temperature and humidity

6.Remote outdoor temperature

7.Time alarm

B.RADIO-CONTROLLED TIME

1.The projection alarm will automatically search for the time signal upon initial set-up and every night.

2.When the signal is being received, there will be a “tower” icon flashing to the left of the time display.

3.When the time signal has been received successfully, the tower icon will remain steady until midnight.

4.The NIST (National Institute of Standards and Technology—Time and Frequency Division) WWVB radio station is located in Ft. Collins, Colorado, and transmits the exact time signal continuously throughout the United States at 60 kHz. The signal can be received up to 2,000 miles away through the internal antenna in the projection alarm.

5.Due to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours. The projection alarm will search for a signal every night when reception is best.

6.The WWVB radio station receives the time data 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.

7.For more detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen to the NIST time, call (303) 499-7111. This number will connect you to an automated time, announced at the top of the minute in “Coordinated Universal Time”, which is also known as Greenwich Mean Time (GMT). This time does not follow Daylight Saving Time changes. After the top of the minute, a tone will sound for every second.

8.It is possible that your projection alarm may not be exactly on the second due to the variance in the quartz. However, the clock will adjust the quartz timing over the course of several days to be very accurate; under 0.10 seconds per day.

C.PROJECTION OF TIME AND/OR REMOTE TEMPERATURE

1.When plugged into an AC outlet, the projection alarm can continuously project the time and remote temperature.

2.When operating on batteries alone, the projection alarm will only project when the snooze button is pressed or the alarm is sounding.

3.The projection will auto-focus for display from three to six feet away. A dark surrounding will be necessary to clearly see the projection.

4.The projection alarm will toggle between the time and outdoor temperature when projecting; either when the “SNOOZE” button is pressed or continuously when using the AC adaptor.

5.The direction of the display can also be rotated 360° in 90° increments by pressing the directional button. There is no display on the LCD that signifies the direction.

6.The projector case can be rotated 180° to further help orient the projected display.

WT-5120 specifications

The La Crosse Technology WT-5120 is a cutting-edge wireless weather station designed to provide precise and real-time weather information for both enthusiasts and everyday users. With its sleek design and intuitive interface, the WT-5120 is not just a weather instrument but a gateway to understanding local climate conditions.

One of the standout features of the WT-5120 is its ability to display a wide array of weather data. It includes measurements such as temperature, humidity, and barometric pressure, which are crucial for understanding trends and predicting future weather patterns. The device offers both indoor and outdoor temperature readings, thanks to its external sensor that can be placed outside, transmitting data wirelessly to the main unit.

Another notable characteristic is its user-friendly interface, which showcases an easy-to-read LCD screen. The display presents the information in clear, organized formats, allowing users to quickly grasp the current weather conditions at a glance. The weather station also incorporates a digital clock and calendar, making it a multifunctional device suitable for any home or office environment.

The WT-5120 utilizes innovative wireless technology, enabling it to communicate with the external sensor seamlessly. This technology not only ensures reliable data transmission but also allows the user to position the sensor up to 300 feet away from the main unit, providing flexibility in sensor placement without compromising accuracy.

For those who appreciate detailed historical data, the WT-5120 records and archives past weather trends, which can be invaluable for analyzing changes over time. Additionally, the weather station includes customizable alerts, allowing users to receive notifications for specific conditions such as extreme temperatures, making it a crucial tool for anyone who needs to stay ahead of the weather.

Power efficiency is another key attribute of the WT-5120, which operates on batteries for the main unit and the external sensor. This design means that users do not have to worry about electrical outlets, ensuring that the weather station remains functional even during power outages.

Overall, La Crosse Technology's WT-5120 stands out in the market as a reliable, easy-to-use weather station that combines essential features with advanced technology. Its versatility and comprehensive data coverage make it an ideal choice for anyone looking to enhance their understanding of local weather conditions. Whether for personal use or educational purposes, the WT-5120 is designed to meet the needs of various users, providing them with the vital information needed to make informed decisions based on weather forecasts. With its durability, accuracy, and modern design, this weather station is an excellent addition to any home or workspace.