La Crosse Technology 308-1425BV3 Abmessungen

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308-1425BV3 FAQS 
 
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CONTENTS 
308-1425Bv3 FAQS ................................................................................................................ 1 
AC Power ................................................................................................................................. 2 
Batteries .................................................................................................................................. 2 
Weather Station Factory Restart ......................................................................................... 2 
Outdoor Temperature Sensor............................................................................................... 3 
Compatible Outdoor sensors ................................................................................................... 3 
Quick Connect......................................................................................................................... 3 
Outdoor Temperature Signal Strength .................................................................................... 4 
Dashes show for Outdoor Temperature .................................................................................. 4 
Power Requirements............................................................................................................... 4 
Inaccurate Outdoor Temperature Reading.............................................................................. 4 
Intermittent Outdoor Temperature ......................................................................................... 5 
Outdoor Temperature is stuck or HH.H, LL.L .......................................................................... 5 
Outdoor sensor drains batteries quickly .................................................................................. 5 
Outdoor Humidity goes to dashes when temperature is cold. ................................................. 6 
Outdoor sensor fell. The sensor no longer works.................................................................... 6 
Temperature/Humidity Trend Arrows...................................................................................... 7 
MIN/MAX Temperature readings............................................................................................. 7 
Heat Index/Dew Point............................................................................................................. 7 
Mounting/Positioning Outdoor sensor ..................................................................................... 8 
Position Weather Station......................................................................................................... 9 
Distance/Resistance/Interference ........................................................................................... 9 
Temperature Alerts............................................................................................................10 
Explanation: The outdoor and indoor temperature alerts are set in two separate steps. ....10 
Weather Station ....................................................................................................................11 
Power Requirements..............................................................................................................11 
12-Hour or 24-Hour time format............................................................................................11 
Fahrenheit/Celsius .................................................................................................................11 
Backlight................................................................................................................................11 
Dashes, HH.H, LL.L or stuck Indoor Temperature/Humidity...................................................12 
Inaccurate Indoor Temperature Reading ...............................................................................12 
Set Time Alarm ......................................................................................................................12 
Activate/Deactivate time alarm ..............................................................................................12 

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Snooze Alarm.........................................................................................................................12 
No WWVB Tower Icon ...........................................................................................................13 
Time is off by hours...............................................................................................................13 
Manually Set Time/Date: Program Menu...............................................................................13 
Forecast Icons Inaccurate......................................................................................................14 
Pressure graph is missing segments ......................................................................................14 
Moon phase ...........................................................................................................................15 
Weather station is dim...........................................................................................................15 
Weather station has distorted or frozen display .....................................................................15 
Weather station is blank: No letters, numbers or dashed lines...............................................16 
Weather station drains batteries quickly ................................................................................16 
Weather station has missing segments ..................................................................................16 
 
AC Power 
 
•The design of this weather station is to use AC power (5-volt) as primary power 
source. 
•When operating with the AC power cord, the backlight can be on continually. 
•When operating on AC power, batteries are optional and are not required in the 
weather station. 
•The backlight will turn off or operate at high or low intensity at your discretion. 
 
Batteries 
 
Explanation: Many problems are resolved with fresh batteries of the appropriate 
voltage. Many items sent in under warranty work when tested with fresh batteries. 
Batteries manufactured this year will have an expiration date 10 years (or more) in the 
future. Battery technology has improved and batteries will maintain voltage longer in 
storage. However, the environment the batteries reside in for the 10 years can deplete 
the power. 
 
•Use Alkaline or Lithium batteries in the outdoor sensor. 
•A minimum voltage of 1.48V for each battery is necessary for proper performance. 
•Use batteries dated at least six years in advance of the current year. Batteries dated 
earlier than six years from now may still work, but may be unstable in performance. 
•Good name brand batteries make less noise, which reduces the chance of RF (radio 
frequency) interference from the battery compartment. 
 
 Weather Station Factory Restart 
 
Explanation: The factory restart returns the weather station and outdoor sensor to an 
“out-of-the-box” default state and often resolves an issue. 
 
Factory Restart: 
1. Remove all power (batteries and AC) from outdoor sensor and weather station. 

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 3

2. Press one of the buttons on the weather station at least 20 times to clear all

memory.

3. Verify that the weather station is blank before proceeding (there may be lines

painted on the screen that will show when there is no power).

4. Leave both units without power for 15 minutes (very important).

5. Insert the AC power cord into the wall outlet then into the weather station.

6. Insert fresh batteries into the outdoor sensor.

7. Press the TX button on the outdoor sensor to transmit RF signal.

8. Keep the outdoor sensor 5-10 feet from the weather station.

9. When RF connection is established, the temperature will appear on the station.

Allow the outdoor sensor and weather station to sit together for 15 minutes to

establish a strong connection.

10.Do not press buttons for 15 minutes.

•For optimum 433MHz transmission, place the outdoor sensor no more than 300

feet (91 meters, open air) from the weather station.

•See the section on mounting and distance/resistance/interference for details on

mounting the outdoor sensor.

Outdoor Temperature Sensor

Compatible Outdoor sensors

•The TX141TH-Bv4 outdoor sensor comes packaged with this weather station.

•TX141TH-Bv2, TX141TH-Bv3 and TX141TH-B (433MHz) outdoor sensors are

compatible with this weather station.

Quick Connect

Explanation: Use the quick connect for a weather station and outdoor sensor that

have been working but lost connection due to interference or low batteries. This is not

the same as a thorough factory reset.

1. Bring the outdoor sensor and weather station together inside, and place the units

5-10 feet apart with nothing between them.

2. Hold the HEAT/DEW button for 5 seconds. The outdoor temperature area will flash.

3. Remove battery cover from the outdoor sensor and press and release the TX

button to send the signal.

4. Wait for 2 minutes for the outdoor temperature to appear on the weather station.

Factory Restart: If the above procedure does not work, please try the factory reset.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 4

Outdoor Temperature Signal Strength

Explanation: The weather station will search for the outdoor temperature/humidity

sensor for 3 minutes after installing batteries or after holding the HEAT/DEW button for

3 seconds.

•The antenna symbol will flash during reception.

•The temperature display will be dashes “---“.

•If synchronization fails once, the antenna will lose one bar.

•If synchronization fails twice, the antenna will lose two bars.

•If RF (radio frequency) reception fails five times, the antenna symbol will show

without bars.

•The antenna will show full display with successful RF (radio frequency) reception.

Dashes show for Outdoor Temperature

Explanation: Dashes mean the connection is lost between the weather station and the

outdoor sensor.

•Batteries often resolve the connection.

•Distance/Resistance can cause loss of connection between the outdoor sensor

and the weather station.

•Turn the weather station 90 degrees towards the outdoor sensor to provide

better reception. This allows more antenna surface to face the outdoor sensor

signal.

•Try the quick connect or factory restart.

Power Requirements

•2-AA batteries power the outdoor sensor.

•We recommend Alkaline batteries for the outdoor sensor.

•You may choose to use Lithium batteries for temperatures below -20°F/-28.8°C.

Inaccurate Outdoor Temperature Reading

Explanation: High outdoor temperature readings are generally a location issue. Low

outdoor temperature readings are power related or a sensors going bad.

•The outdoor sensor reads the environment where it is mounted. When mounted

inside the home, it will read inside temperature/humidity.

•When the outdoor sensor reads high during the day, but not at night, it is a

positioning problem.

•Look for heat sources such as sunlight, door or window frames or reflected heat.

Side-by-side test: Place the outdoor sensor right next to the weather station for 2

hours.

•Compare indoor and outdoor temperature. The temperatures should be within 4

degrees to be within tolerance.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 5

•If the outdoor sensor reads correctly when next to the weather station, try a

different location outside.

Intermittent Outdoor Temperature

Explanation: Intermittent problems are the hardest to resolve. RF (radio frequency)

communication may come and go occasionally. This can be normal in some

environments (e.g. moister climates). If outdoor sensor signal is lost, please wait 2-4

hours for the signal to reconnect on its own.

•Move the outdoor sensor to a closer location.

•Distance/Resistance can cause loss of outdoor sensor signal.

•Check Batteries.

Freezer test: Confirm the weather station is reading the correct outdoor sensor (not a

neighbor’s sensor). Place the outdoor sensor in the freezer for an hour and watch the

temperature drop on the weather station.

Indoor distance test: Please complete the Restart with outdoor sensor and weather

station 5-10 feet apart and inside to establish a strong connection.

•After 15 minutes, if there is a reading in the outdoor temperature area, move the

outdoor sensor to another room with one wall between the outdoor sensor and

the weather station.

•Observe to see if the temperature remains on consistently for 1 hour.

•If the temperature remains on while in the house, then it is likely a

distance/resistance issue.

•Move the outdoor sensor to different locations outside to find a location where

the temperature reading will hold.

Outdoor Temperature is stuck or HH.H, LL.L

Explanation: These symbols are error messages indicating the outdoor sensor is

outside of its readable range.

•Check Batteries. Overpowered or underpowered batteries can cause this reading.

•Replace outdoor sensor.

Note: The last outdoor reading may remain (not change) for several hours when

connection is lost. The outdoor temperature reading will flash when the connection is

first lost or intermittent.

Outdoor sensor drains batteries quickly

•Test a new set of alkaline batteries. Write down the date of installation and the

voltage of the batteries.

•When the batteries fail, please note the date and voltage again.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 6

•Check the distance and resistance between the outdoor sensor and weather

station. Outdoor sensors at the end of the range may work while batteries are

fresh but not after they drain a bit.

•Check for leaking batteries, which may damage the outdoor sensor.

•Battery life is over 24 months when using reputable battery brands for both

Alkaline and Lithium batteries.

Outdoor Humidity goes to dashes when temperature is cold.

•The outdoor temperature/humidity sensor designed to work with this weather

station may drop the outdoor humidity and dew point reading in cold

temperatures.

•The humidity and dew point will return when the temperature rises. This is how

the sensor came from the factory. The temperature itself will continue to read.

Outdoor sensor fell. The sensor no longer works

Explanation: If there is no physical damage to the outdoor sensor, the fall may not

have caused internal damage. A fall can shock the outdoor sensor or the batteries in

the outdoor sensor. Batteries that have fallen on a hard surface may be damaged and

unable to function properly.

•Complete a Restart with fresh batteries.

•Use Batteries dated at least six years in advance of the current year. Batteries

dated earlier than six years from now may still work, but may be unstable in

performance.

Note: An outdoor sensor that has fallen into puddle, snow, or other standing water, will

likely have water damage and need replacement. Outdoor sensors are water resistant,

not waterproof.

Replacement Outdoor sensors

•Visit your local Retailer or La Crosse Technology® Store

http://store.lacrossetechnology.com/

•Note: Be sure to order the correct model and frequency to avoid receiving the

incorrect item.

•Call La Crosse Technology® Store at 608-785-7939 or e-mail from the store

website if you are unsure about the correct item to order. Each item carries the

original new product warranty and includes access to La Crosse Technology®

technical support.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 7

Temperature/Humidity Trend Arrows

Explanation: The indoor and outdoor temperature (2°F / 1°C) and humidity (3% RH)

trend indicators update every 30 minutes or less. These trends represent temperature

changes over the past three hours.

Example: At 11:00, the trend arrows will reflect changes in temperature or humidity

since 8:00. At 11:30, the trend arrows will reflect changes in temperature or humidity

since 8:30, etc.

Up Arrow:

•Temperature has risen in the past 3 hours.

•Humidity has risen in the past 3 hours.

Right Arrow:

•Temperature has not changed in the past 3 hours.

•Humidity has not changed in the past 3 hours.

Down Arrow:

•Temperature has fallen in the past 3 hours.

•Humidity has fallen in the past 3 hours.

MIN/MAX Temperature readings

Explanation: The weather station shows the daily minimum and maximum

temperatures each day starting at midnight (12:00 AM). The weather station

automatically resets the MIN/MAX temperatures at midnight (12:00 AM).

•View MAX data: Press the ▲ button once to view maximum temperature and

humidity values for indoor and outdoor data.

•Reset MAX data: Hold the ▲button for five seconds to reset maximum

temperature and humidity values for indoor and outdoor data.

•View MIN data: Press the ▼button once to view minimum temperature and

humidity values for indoor or outdoor data.

•Reset MIN data: Hold the ▼button for five seconds to reset minimum

temperature and humidity values for indoor and outdoor data.

Heat Index/Dew Point

Heat Index:

•Heat Index combines the effects of heat and humidity.

•Heat Index is what the temperature feels to a human being.

•As humidity increases, the body is unable to cool effectively.

•The temperature will feel warmer.

View Heat Index: From the default time display, press the HEAT/DEW button once

and Heat Index will show instead of the outdoor ambient temperature.

Note: Heat index will be the same number as the temperature until the outdoor

temperature is above 26.7°C (80°F).

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 8

Dew Point Temperature:

•Dew Point Temperature is the saturation point of the air, or the temperature to

which the air has to cool in order to create condensation.

•The higher the dew points, the higher the moisture content of the air at a given

temperature.

View Dew Point Temperature: From the default time display, press the HEAT/DEW

button twice and Dew Point will show instead of the outdoor ambient temperature. The

words “Dew Point”will show near outdoor temperatures.

Note: Dew Point is lower than the actual temperature.

Mounting/Positioning Outdoor sensor

First: Place the outdoor sensor in the desired shaded location and the weather station

in the home. Wait approximately 1 hour before permanently mounting the outdoor

sensor to ensure that there is proper reception.

POSITION

Outdoor:

•Protect the outdoor sensor from standing rain or snow and from the overhead

sun, which can cause it to read incorrectly.

•Mounting under an eave or deck rail works well.

•If you choose, you can construct a small roof or box for the outdoor sensor. Be

sure a box has vents.

•Mount the outdoor sensor on the North side where to prevent sun from causing

incorrect readings.

•Mount at least 6 feet in the air for a strong RF (radio frequency) signal.

•Do not mount the outdoor sensor on a metal fence. This significantly reduces the

effective range.

•Outdoor sensors are water resistant, not waterproof.

Indoor:

•Mount the Outdoor Sensor indoors to monitor high mold risk areas like in a crawl

space or a basement.

Indoor or Outdoor:

•Mount outdoor temperature sensor vertically.

•Avoid more than one wall between the outdoor sensor and the weather station.

•The maximum transmitting range in open air is over 300 feet (91 meters).

•Obstacles such as walls, windows, stucco, concrete and large metal objects can

reduce the range.

•Do not mount near electrical wires, transmitting antennas or other items that will

interfere with the signal.

•RF (radio frequency) signals do not travel well through moisture or dirt.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 9

MOUNT

Option 1:

•Install one mounting screw (not included) into a wall.

•Place the outdoor sensor onto the screw (hanging hole on the backside).

•Gently pull down to lock the screw in place.

Option 2:

•Insert the mounting screw through the front of the outdoor sensor and into the

wall.

•Tighten the screw to snug (do not over tighten).

Position Weather Station

•The weather station has a pull out stand to sit on a desk or table or can be wall

mounted.

•Place within range of the outdoor sensor.

•The maximum transmitting range in open air is 300 feet (91 meters).

•Obstacles such as walls, windows, stucco, concrete and large metal objects can

reduce the range.

•Choose a location 6 feet or more from electronics such as cordless phones,

wireless gaming systems, televisions, microwaves, routers, baby monitors, etc.,

which can prevent signal reception.

•Be aware of electrical wires and plumbing within a wall. This will interfere with

RF (radio frequency) signal reception.

Distance/Resistance/Interference

Distance:

•The maximum transmitting range in open air is over 300 feet (91 meters)

between the outdoor sensor and the weather station. This range is in open air

with ideal conditions.

•Consider what is in the signal path between the weather station and the outdoor

sensor.

•Avoid placing electronics in the signal path between the weather station and the

outdoor sensor.

Resistance:

•Obstacles such as walls, floors, windows, stucco, concrete and large metal

objects can reduce the range.

•When considering the distance between the outdoor sensor and the weather

station (200 feet open air), cut that distance in half for each wall, window, tree,

bush or other obstruction in the signal path.

•Closer is better.

•Windows reflect the RF (radio frequency) signal.

•Metal absorbs the signal and reduces the range.

•Stucco has a metal mesh that absorbs the signal.

La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 10

•Do not mount the outdoor sensor on a metal fence. This significantly reduces the

effective range.

Interference:

•Consider items in the signal path between the outdoor sensor and the weather

station.

•Sometimes a simple relocation of the outdoor sensor or the weather station will

correct the interference.

•Windows can reflect the radio signal.

•Metal will absorb the RF (radio frequency) signal.

•Stucco has a metal mesh that absorbs signal.

•Avoid transmitting antennas: (ham radios, emergency dispatch centers, airports,

military bases, etc.)

•Electrical wires (utilities, cable, etc.)

•Vegetation is full of moisture and reduces signal.

•It is difficult for RF (radio frequency) signal to travel through a hill.

Temperature Alerts

Explanation: The outdoor and indoor temperature alerts are set in two separate steps.

•Set the alert value.

•Arm/Disarm the alert.

Select Temperature Alert Values:

Hold the ALERT button for five seconds to select and set temperature alert values.

1. OUTDOOR HI alert will flash. Press the ▲ or ▼ buttons to set the alert value, and

press the ALERT button to confirm. Then press the ALERT button again switch to

OUTDOOR LO setting.

2. OUTDOOR LO alert will flash. Press the ▲ or ▼ buttons to set the alert value, and

press the ALERT button to confirm. Then press the ALERT button again switch to

INDOOR HI setting.

3. INDOOR HI alert will flash. Press the ▲ or ▼ buttons to set the value, and press

the ALERT button to confirm and switch to INDOOR LO.

4. INDOOR LO alert will flash. Press the ▲ or ▼ buttons to set the alert value, and

press the ALERT button to confirm. Then press the ALERT button again confirm and

exit.

Note: After selecting temperature alert values, use the next step to arm or disarm

individual alerts.

Temperature Alerts ON/OFF

•In normal mode, hold then release the ALERT button to toggle between:

oOutdoor HI

oOutdoor LO

oIndoor HI

oIndoor LO

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