To set the Alarm Time - Hour: Press and hold down the "ALARM" button for 2 seconds until the hours digits flash. Use the “PLUS” button to set the hour. Press the "ALARM" button to confirm your setting and move to setting the minutes.
To set the Alarm Time - Minutes: The Minutes digits of the Alarm Time will flash. Use the “PLUS” button to set the minutes. You can hold the "PLUS" button in to speed up the setting of minutes by using five minute increments. Press the "ALARM" button to confirm your minutes setting and to end the setting procedure.
To activate or deactivate the daily alarms, briefly press the “ALARM”
button once. When the alarm is active the clock displays the alarm
icon 
below the word "ALARM". When deactivated, the alarm
icon 
does not display.
About the Daily Alarms:
After 30 seconds without pressing any button the clock switches automatically from alarm setting mode to normal clock mode.
The alarm will sound for 85 seconds if not deactivated. You can deactivate it by pressing any button. The alarm will be repeated automatically after 24 hours.
The alarm uses 3 different patterns of tone, beginning gently and increasing in intensity, known as a "Crescendo Alarm". The effect is to provide increasing levels of alarm to ensure waking while providing a gentle alarm to lighter sleepers.
Automatic Snooze function:
While the alarm is sounding, press the "SNOOZE" button to activate
the snooze function. The alarm icon 
flashes on the display until the alarm sounds again when the Snooze period is over (10 minutes).
Pressing the "SNOOZE" button moves the alarm back by 10 minutes and the alarm will restart at this time.
The Snooze function can be interrupted by pressing any button.
Battery Replacement
If you notice that the LCD appears faint or that WWVB time reception is not working properly, try a fresh set of batteries before contacting customer support.
The Low Battery Icons:
When the batteries need to be replaced in the Wireless Outdoor Sensor, the LCD will display the “TX” icon. 
When the batteries need to be replaced in the Atomic Clock, the LCD will display the “RX” icon. 
We recommend that you replace the batteries in all units regularly to ensure optimum accuracy of these units. Please see the battery life in the specifications below.
Help us to keep our environment clean. Return used batteries to an authorized depot.
Specifications
Battery Life - Atomic Clock: Up to 24 months
Battery Type - Atomic Clock: 2 X AA (IEC LR6, 1.5V)
Battery Life - Wireless Outdoor Temperature Sensor: Up to 12 months - 2 X
Battery Type - Wireless Outdoor Temperature Sensor: 2 X AAA (IEC LR3, 1.5V)
Indoor thermometer measurement range: 14.2°F to 99.9° F
Indoor temperature update interval: every 16 seconds
Wireless Outdoor Temperature Sensor measurement range:
Outdoor temperature update interval: every 8 seconds
Wireless Outdoor Temperature Sensor transmission range: 200 feet.
Dimensions - Atomic Clock: 8.95” L x 1.20” W x 7.20” H
Dimensions - Wireless Outdoor Temperature Sensor: 1.27” L x 0.55” W x 3.41” H
Power Requirements
Note: Rechargeable batteries are not recommended due to the wide variation in performance between brands and types. Please use only fresh alkaline batteries.
Atomic Clock: 2 “AA” Alkaline Batteries (not included)
Wireless Outdoor Temperature Sensor: 2 “AAA” Alkaline Batteries (not included)
FCC Statement
FCC ID: OMO-TX38U
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
Freq. 915 MHz
La Crosse Technology Model:
Warranty Information
La Crosse Technology, Ltd provides a
This limited warranty begins on the original date of purchase, is valid only on products purchased and used in North America and only to the original purchaser of this product. To receive warranty service, the purchaser must contact La Crosse Technology, Ltd for problem determination and service procedures. Warranty service can only be performed by a La Crosse Technology, Ltd authorized service center. The original dated bill of sale must be presented upon request as proof of purchase to La Crosse Technology, Ltd or La Crosse Technology, Ltd’s authorized service center.
La Crosse Technology, Ltd will repair or replace this product, at our option and at no charge as stipulated herein, with new or reconditioned parts or products if found to be defective during the limited warranty period specified above. All replaced parts and products become the property of La Crosse Technology, Ltd and must be returned to La Crosse Technology, Ltd.
Replacement parts and products assume the remaining original warranty, or ninety (90) days, whichever is longer. La Crosse Technology, Ltd will pay all expenses for labor and materials for all repairs covered by this warranty. If necessary repairs are not covered by this warranty, or if a product is examined which is not in need of repair, you will be charged for the repairs or examination.
The owner must pay any shipping charges incurred in getting your La Crosse Technology, Ltd product to a La Crosse Technology, Ltd authorized service center.
Your La Crosse Technology, Ltd warranty covers all defects in material and workmanship with the following specified exceptions: (1) damage caused by accident, unreasonable use or neglect (including the lack of reasonable and necessary maintenance); (2) damage occurring during shipment (claims must be presented to the carrier); (3) damage to, or deterioration of, any accessory or decorative surface; (4) damage resulting from failure to follow instructions contained in your owner’s manual; (5) damage resulting from the performance of repairs or alterations by someone other than an authorized La Crosse Technology, Ltd authorized service center; (6) units used for other than home use (7) applications and uses that this product was not intended or (8) the products inability to receive a signal due to any source of interference.
This warranty covers only actual defects within the product itself, and does not cover the cost of installation or removal from a fixed installation, normal
LA CROSSE TECHNOLOGY, LTD WILL NOT ASSUME LIABILITY FOR INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION OF THIS PRODUCT. THIS PRODUCT IS NOT TO BE USED FOR MEDICAL PURPOSES OR FOR PUBLIC INFORMATION. THIS PRODUCT IS NOT A TOY. KEEP OUT OF CHILDREN’S REACH.
This warranty gives you specific legal rights. You may also have other rights specific to your State. Some States do no allow the exclusion of consequential or incidental damages; therefore the above exclusion of limitation may not apply to you.
For warranty work, technical support, or information contact:
La Crosse Technology, Ltd
2817 Losey Blvd. S.
La Crosse, WI 54601
Web: http://www.lacrossetechnology.com/support
All rights reserved. This handbook must not be reproduced in any form, even in excerpts, or duplicated or processed using electronic, mechanical or chemical procedures without written permission of the publisher.
This handbook may contain mistakes and printing errors. The information in this handbook is regularly checked and corrections made in the next issue. We accept no liability for technical mistakes or printing errors, or their consequences.
All trademarks and patents are acknowledged.
Page 5 of 6 | Page 6 of 6 |