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OUTDOOR TEMPERATURE TRANSMITTER: 

 

°C OR °F TEMPERATURE SETTING 

The temperature is measured and transmitted to the atomic clock every 1 minute. The atomic clock 
will update the temperature display every 5 minutes. 

 

1. The 

characters 

“°C” 

or 

“°F” 

will start flashing on LCD1 (Default setting °F). By use of the 

+

 key 

select 

“°C” 

for temperature display in degrees Celsius or 

“°F” 

for degrees Fahrenheit. 

The range of the outdoor temperature transmitter may be affected by the temperature. At cold 
temperatures the transmitting distance may be decreased. Please bear this in mind when positioning 
the transmitter. Also the batteries may be reduced in power during periods of extreme cold 
temperatures. 

2. 

Press and release the 

SET

 key to exit the setting mode and switch back to the normal display 

mode. 

 

EXIT THE MANUAL SETTING MODES 

 

433MHz RECEPTION CHECK FOR OUTDOOR TEMPERATURE TRANSMITTER 

• 

To return to the normal display mode from anywhere in manual setting mode simply press the 

SNZ 

key anytime. 

The atomic clock will receive the temperature data within 4 minutes. If the temperature data is not 
being received 4 minutes after setting up (the display shows “- - -”), then please check the following 
points: 

• 

If no keys are pressed for at least 15 seconds in setting mode, the atomic clock will 
automatically switch back to normal display mode. 

1. 

The distance of the atomic clock or outdoor temperature transmitter should be at least 6 feet (2 
meters) away from any interfering sources such as computer monitors or TV sets. 

 

ALARM SETTING 

To enter into the alarm setting mode: 

2. 

Avoid placing the receiver onto or in the immediate proximity of metal window frames. 

1. Hold 

the 

ALM

 key for 4 seconds. The hour digits start flashing. 

3. 

Using other electrical products such as headphones or speakers operating on the same signal 
frequency (433MHz) may prevent correct signal transmission and reception. 

2. 

Press and release the + key to set the hour. 

3. 

Press and release the 

ALM

 key to set the minutes. The minute digits start flashing. 

4. 

Neighbors using electrical devices operating on the 433MHz signal frequency can also cause 
interference. 

4. 

Press and release the + key to set the minutes. 

5. 

Press and release again the 

ALM

 key to exit the Alarm setting mode or wait for 15 seconds 

automatic timeout. 

Note:

 

 

When the 433 MHz signal is received correctly, do not re-open the battery cover of either the outdoor 
temperature transmitter or atomic clock, as the batteries may spring free from the contacts and force 
a false reset. Should this happen accidentally then reset all units (see 

Setting up

 above) otherwise 

transmission problems may occur. 

 

TO DEACTIVATE THE ALARM: 

 

Alarm icon 
(((

))) (ON) 

 

 

 

The maximum transmission range is 82 feet (25 meters) from the outdoor temperature transmitter to 
the atomic clock (in open space). However, this depends on the surrounding environment and 
interference levels. If no reception is possible despite the observation of these factors, all system 
units have to be reset (see 

Setting up

). 

 

 

 

The alarm will be automatically ON when the alarm time is set. To deactivate  the alarm (OFF), press 
and release once the 

ALM

 key in normal mode display. The alarm icon will disappear, the alarm is 

now off. 

 

CHANGING THE DISPLAY MODE (DAY, SECONDS, AND TEMPERATURES) 

There are four possible display modes to view the day, seconds, and temperatures.  

 

SNOOZE SETTING 

The 

month&date/weekday/indoor temperature/outdoor temperature is the default. 

The snooze can only be activated during alarm time for a snooze duration of 10 minutes by pressing 
the SNZ key on the back of the clock 

 

To change the display:

 

 

Summary of Contents for WS-8157U-A

Page 1: ...our time display Time display hour minute second TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER Function keys LCD1 display Foldable stand Battery cover Hanging holes LCD2 display Alar...

Page 2: ...will override the manually set time The date is also updated with the received time Please refer to notes on Radio controlled time and Manual time setting 4 After the time signal has been received or...

Page 3: ...sunny to cloudy or the reverse It will not change from sunny directly to rainy although it is possible for the change to occur quickly If the symbols do not change then the weather has not changed or...

Page 4: ...essful then the WWVB tower icon will not appear but reception will still be attempted the following hour WWVB time reception takes place from 12 00 am through 6 00 am each day attempts WWVB reception...

Page 5: ...gits start flashing 3 Using other electrical products such as headphones or speakers operating on the same signal frequency 433MHz may prevent correct signal transmission and reception 2 Press and rel...

Page 6: ...ue temperature reading avoid mounting where direct sunlight can reach the outdoor temperature transmitter It is recommended to mount the outdoor temperature transmitter on a North facing wall or in an...

Page 7: ...he transmitter closer to the atomic clock Make sure the clock is at a receivable range from the transmitter 3 Move the units to another location Interferences from other electrical devices operating o...

Page 8: ...Replace only with new batteries of the recommended size BATTERIES CHANGE For best performance batteries should be replaced at least once a year to maintain the best running accuracy Ensure that the b...

Page 9: ...OR FOR PUBLIC INFORMATION THIS PRODUCT IS NOT A TOY KEEP OUT OF CHILDRENS REACH This warranty gives you specific legal rights You may also have other rights specific to your State Some States do not a...

Page 10: ...WS 8157 ATOMIC CLOCK WITH OUTDOOR TEMPERATURE AND WEATHER FORECAST Instruction Manual...

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