Oregon ScientificTM JUMBO RF CLOCK
with Indoor Thermometer
(JM889/JM889U)
User Manual
TABLE OF CONTENTS
Introduction ........................................................................ 2
Key features ....................................................................... 2
Front view ........................................................................ 2
Back view ........................................................................ 3
LCD display symbols ....................................................... 3
Safety and care instructions .............................................4
Safety precautions ........................................................... 4
Caring for your product .................................................... 4
Getting started ................................................................... 4
Unpacking the product..................................................... 4
Batteries .......................................................................... 5
Placement of unit ............................................................. 5
Indoor temperature display .............................................. 6
Toggling between seconds/day-of-week display ............. 6
Radio reception .................................................................. 6
Radio reception description ............................................. 6
Enabling/disabling radio reception................................... 7
To set the clock manually ................................................. 7
Language options ............................................................ 8
Alarm functions.................................................................. 8
Basic functions ................................................................ 8
Displaying alarm time ...................................................... 8
Adjusting the alarm time .................................................. 9
Activating / deactivating the alarm ................................... 9
Reset hole ........................................................................... 9
Troubleshooting guide .................................................... 10
Specifications................................................................... 11
Warnings........................................................................... 11
Additional resources ....................................................... 12
EC-Declaration of conformity.......................................... 12
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INTRODUCTION
Thank you for selecting the Oregon ScientificTM Jumbo RF
Clock with Indoor Thermometer as your product of choice. This
device is designed to give you many years of reliable service,
including the following conveniences:
• Radio-Controlled Calendar Clock*
• Indoor Temperature Display
• Daily Alarm
*Automatically synchronizes the current time and date when
it is brought within range of the radio signal MSF60 generated
from Rugby, England (model JM889U) or DCF77 generated
from Frankfurt, Germany for Central Europe (model JM889).
In addition to providing step-by-step instructions for this product,
this manual contains important safety and care information.
Read the manual thoroughly, and keep it in a safe place in case
you need to refer to it.
KEY FEATURES
Front View
1. Main LCD Display
Displays current time and RF signal reception indication
2. Seconds/Day-of-Week Display
Can select between seconds or day-of-week display
3. Current Date/Alarm Time Display
Can select between current date or alarm time display
4. Indoor Temperature Display
Displays currently monitored indoor temperature
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Back View
5. Wall-Mount Recess Hole
For mounting the unit to a wall
6. Alarm Button
To display and adjust alarm time
7. Clock Button
To manually adjust current time and date
8. Reset Hole
Returns all settings to default values.
9. button
Used to adjust settings down one notch or to enable/disable
RF radio reception
10. button
Used to adjust settings up one notch or to enable/disable
RF radio reception
11. Battery Compartment
The unit uses 2 AA/UM-3 1.5V batteries for power.
12. Table Stand
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Can be pulled out and used to stand the unit on a flat surface
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LCD Display Symbols
Icon Description Explanation
Radio Reception
Indicates the condition of radio reception.
Signal
Low Battery Appears when power is low.
Alarm-on Appears when alarm is activated.
Alarm Time
Appears when alarm time is displayed.
Indicator
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SAFETY AND CARE INSTRUCTIONS
Safety Precautions
Please observe the following safety precautions when setting
up and using this product.
• LCD panel - The LCD panel is made of glass, and may
break if the unit is dropped or impacted.
• Heat sources - Keep the product away from heat sources
such as radiators, stoves, heaters, and other
heat-generating products.
• Water and moisture - Do not use the product in or near
water or in high moisture areas such as a bathroom.
Caring for your Product
To ensure you receive the maximum benefit from using this
product, please observe the following guidelines.
• Cleaning - Use a damp cloth. Do not use liquid cleaning
agents, benzene, thinner, or aerosols.
• Ventilation - The vents and other openings are designed
for ventilation, and should not be blocked or covered.
Blocking the vents can cause the product to overheat, and
can damage the unit.
• Repair - Do not attempt to repair the product or modify the
circuitry by yourself. Contact the retailer or a qualified
repairman if the product requires servicing. Only use
replacement parts that are recommended by the
manufacturer.
• Do not scratch hard objects against the LCD display as this
may cause damage.
GETTING STARTED
Unpacking the product
When you unpack your clock, make sure to keep all the packing
materials in a safe place, in case you need to later transport or
return it for servicing.
In the box, you will find:
Clock unit Batteries User manual
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