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La Crosse Technology, Ltd.  

Page 7 

 

  Windows can reflect the radio signal.  

  Metal will absorb the RF (radio frequency) signal. 

  Stucco is held to the wall by a metal mesh. 

  Transmitting antennas (ham radio, emergency dispatch center, airports, military base etc.) 

  Electrical wires (utilities, cable etc.) 

  Vegetation is full of moisture and reduces signal. 

  Dirt: Trying to receive a signal through a hill is difficult. 

 

Accuracy 

 

Indoor Temperature 

 

  Measure range=32

 to 140

 (0

 to 50

  Accuracy ±1 degree Fahrenheit at room temperature (68

 to 75

)(20

 to 24

  Accuracy ±2 degrees Fahrenheit 32

 to 122

 (0

 to 50

  Resolution=0.1

 or 0.1

 

  When above 122 

 (50

) the temperature should continue to read the correct temperature 

as long as the LCD display continues to function 

  Temperature Cycle: 30 seconds 

 

Outdoor Temperature 

 

  Measure range = -40 

 to 158 

 (0

 to 70

  Accuracy ± 1 degree Fahrenheit at room temperature (68F-to-75F) (20

-to-24

  Accuracy ± 2 degrees Fahrenheit 32 F to 122 F (0

 to 50

  Accuracy ± 4 degrees Fahrenheit otherwise 

  Resolution = 0.1 degree F 

  

Digital Atomic Clock 

 

How tall are the Time Numbers? 

 

The time numbers are 2 1/8 inches tall. 

 

Supported Time Zones 

 

This Digital Atomic Clock offers seven time zones: 

 

  AST=Atlantic 

  EST= Eastern 

  CST= Central 

  MST= Mountain 

  PST= Pacific 

  AKT= Alaska 

  HAT=Hawaiian  

The Digital Atomic Clock is designed to work in North America. 

 

12-Hour or 24-Hour Time Format 

 

  Display the time in 12-hour or 24-hour format  

  Default is 12-hour time. 

  Use the 

Program Menu

 to switch time formats. 

 

Power Requirements 

 

  2-AA alkaline batteries power the Digital Atomic Clock 

 
 
 

Summary of Contents for 513-149V2

Page 1: ... Constantly 4 Inaccurate Outdoor Temperature Reading 4 Intermittent Outdoor Temperature 4 Outdoor Temperature is Stuck or OFL 4 Outdoor Transmitter Fell and No Longer Works 4 Outdoor Transmitter Drains Batteries Quickly 5 Temperature Trend Arrows 5 Mounting Positioning Outdoor Transmitter 5 Position Digital Atomic Clock 6 Distance Resistance Interference 6 Accuracy 7 Indoor Temperature 7 Outdoor T...

Page 2: ...ronment the batteries reside in for the 10 years can deplete the power Good name brand batteries make less noise which reduces the chance of RF radio frequency interference from the battery compartment A minimum voltage of 1 48V for each battery is necessary for proper performance Outdoor Transmitters Use Alkaline batteries or Lithium for temperatures below 20 F 28 8 C Indoor Displays Use Alkaline...

Page 3: ...n between the transmitter and the Digital Atomic Clock Check the position of the Digital Atomic Clock Turn the Digital Atomic Clock 90 degrees towards the outdoor transmitter for better reception Try the quick connect or factory restart Batteries often resolve the connection issue Dashes shown for Outdoor Temperature Dashes means the connection is lost between the Digital Atomic Clock and the outd...

Page 4: ...wn Move the outdoor transmitter to a closer location Freezer test Confirm the Digital Atomic Clock is reading the correct outdoor transmitter Place the transmitter in the freezer for an hour and watch the temperature drop on the Digital Atomic Clock Indoor distance test Please complete the Restart with transmitter and Digital Atomic Clock 5 10 feet apart and inside to establish a strong connection...

Page 5: ...flect the temperature change in the past three hours UP ARROW Temperature rising more than 2 F 1 C over the past three hours RIGHT ARROW Temperature did not change more than 2 F 1 C over the past three hours DOWN ARROW Temperature falling more than 2 F 1 C over the past three hours Mounting Positioning Outdoor Transmitter Mount outdoor Temperature transmitters vertically and under a bit of an over...

Page 6: ... mounting screws not included into a wall within transmission range of the outdoor transmitter leaving approximately 3 16 of an inch 5mm extended from the wall Place the Digital Atomic Clock onto the screws using the hanging holes on the backside Gently pull the Digital Atomic Clock down to lock the screws into place Note Always ensure that the Digital Atomic Clock locks onto the screws before rel...

Page 7: ...ct temperature as long as the LCD display continues to function Temperature Cycle 30 seconds Outdoor Temperature Measure range 40 to 158 0 to 70 Accuracy 1 degree Fahrenheit at room temperature 68F to 75F 20 to 24 Accuracy 2 degrees Fahrenheit 32 F to 122 F 0 to 50 Accuracy 4 degrees Fahrenheit otherwise Resolution 0 1 degree F Digital Atomic Clock How tall are the Time Numbers The time numbers ar...

Page 8: ...he past 24 hours Reposition the Digital Atomic Clock with the front or back facing Colorado Check that the Time Zone selected correctly reflects your location Adjust the time zone in the Program Menu Check that the DST indicator is correct for your location most areas observe DST so this should be ON Adjust the DST indicator in the Program Menu Large buildings metal roofed buildings and buildings ...

Page 9: ...is activated DEACTIVATE From the time mode press and release the ALARM button once to show Alarm Time With the Alarm time showing press and release the ALARM button to deactivate the alarm The alarm icon will disappear when alarm is deactivated Snooze Alarm When the alarm sounds press the SNOOZE button to trigger snooze alarm for 9 minutes The snooze icon Zz will flash when the snooze feature is a...

Page 10: ...e weekday will set automatically after the year month and date are set FAHRENHEIT CELSIUS Press and release the F C button to select temperature readings in Fahrenheit or Celsius No WWVB Tower Icon The Digital Atomic Clock has not received a WWVB time signal in the past 24 hours Position the Digital Atomic Clock for better reception Hold the TIME button to send the Digital Atomic Clock on a signal...

Page 11: ... displays This can make the Digital Atomic Clock display appear frozen With all power removed the Digital Atomic Clock should be blank If numbers still appear please check for scratch guard Check that the batteries are installed correctly This is generally a power related issue Batteries may be overpowered or underpowered Remove batteries from Digital Atomic Clock Press any button 20 times Leave t...

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