3.Press it again to turn off both of them until the icons disappear.
Note:
1.To turn on temperature pre-alarm, ALARM must be on.
2.The temperature pre-alarm can sound 30 minutes earlier than the alarm only when the outdoor temperature is below -3°C (26°F).
3.If no key is pressed during the alarm period, the clock will enter the snooze mode automatically. Besides, you can also press “SNOOZE” key once to stop the current alarm and activate the snooze function.
4.Once the snooze function is activated, the 4- step crescendo alarm will sound 13 times in 5- minute interval. The alarm duration is 60 seconds.
VIEWING THE CHANNEL
The default channel is Channel 1. Press “CHANNEL” key to view the channels from 1 to 3.
Besides, press and hold “CHANNEL” key for 2 seconds to show the channels automatically; press it once again to exit the automatic display mode.
HOW TO READ TEMPERATURE RECORDS
Change the temperature unit to °C for Celsius or °F for Fahrenheit by pressing “°C/°F” key.
Note:
1.If no signals are received or the transmission is interfered, “---” will appear on the LCD.
2.Relocate the clock or transmitter in other positions and make sure the transmission is within the effective range of 30 meters approx.
3.After several trials in vain, please reset the clock thoroughly. Try out where your multifunctional alarm clock receives the signals best.
CHECKING AND DELETING MAX./MIN. TEMPERATURE RECORDS
1.Press “MAX/MIN” key once to check the maximum temperature records. Press it twice to check the minimum records. Press it again to exit.
2.Press and hold “MAX/MIN” key for 3 seconds to delete the max. and min. temperature records.
MAX. Temperature records
MIN. Temperature records
WEATHER FORECAST INDICATOR
The built-in barometer can notice atmosphere pressure changes. Based on the data collected, it can predict the weather conditions in the forthcoming 12-24 hours.
Note:
1.The accuracy of a general pressure-based weather forecast is about 70% to 75%.
2.The weather forecast is meant for next 12 to 24 hours. It may not necessarily reflect the current situation.
3.The “Rainy” and “Stormy” icons are different only in the dropping frequency of the rain. The rain dropping frequency in “Stormy” icon is faster than that in “Rainy” icon.
4.The “Snowy” weather forecast is not based on the atmosphere pressure but on the outdoor temperature. When the outdoor temperature is below -3°C (26°F), the “Snowy” icon will be displayed on the LCD.
Sunny | Slightly cloudy | Cloudy |
ABOUT THE MOON PHASE
The unit has 8 different moon phases. It will change according to the lunar calendar.
New moon Waxing crescent First quarter Waxing gibbous
Full moon Waning gibbous Last quarter Waning crescent
BATTERY REPLACEMENT
If the LCD becomes dim, it means that you should replace batteries of the clock immediately.
If the low battery indicator “ ” appears in the
WEATHER FORECAST AND TEMPERATURE window
of the clock (“ 
”) or on the LCD of transmitter, you should replace batteries of transmitter at once.
Transmitter’s low battery indicator | Transmitter’s low battery indicator |
(shows on the transmitter) | (shows on the main unit) |
| | | |
Note:
Attention! Please dispose of used unit or batteries in an ecologically safe manner. 
USING THE TABLE STAND OR WALL-MOUNTING STAND
The receiver and transmitter have both the desktop and wall-mounting structures.
For the receiver, place the screw on the desired wall and hang the receiver by the recessed hole in the back of it or just simply place it on the desktop by its table stand.
For the transmitter, fix the separate wall-mounting stand outside in the area protected from direct rain by the screw. Once the stand is mounted, place the transmitter into the stand on the wall. Besides, you can also place it on the desktop by its table stand.
SPECIFICATIONS
| TYPE | DESCRIPTION | |
| MAIN UNIT | | |
| L x W x H | 430 (W) x 33 (D) x 288 (H) mm |
| (16.93 x 1.3 x 11.34 in) |
| |
| Weight | | |
| | | |
| Signal frequency | 433 MHz | |
| Temperature | 0 °C to 45 °C (32 °F to 113 °F) |
| range |
| | |
| Moon phase | from year 2000 to 2099 |
| scanner range: |
| | |
| Power | 4 x AA 1.5V batteries |
| | | |
| REMOTE UNIT | | |
| L x W x H | 40 (W) x 23.5 (D) x 128 (H) mm |
| (1.57 x0.93 x 5.04 in) |
| |
| Weight | | |
| | | |
| Signal frequency | 433 MHz |
| Number of channel | 3 | |
| Transmission range | 30 m (98 ft) unobstructed |
| | | |
| Temperature range | -20 °C to 55 °C |
| -4 °F to 131 °F | |
| |
| Power | 2 x AA 1.5V batteries |
| | | |
Note We recommend that you use alkaline batteries with this product for longer usage and lithium batteries in temperatures below freezing.
PRECAUTIONS
Do not subject the unit to excessive force, shock, dust, temperature or humidity.
Do not cover the ventilation holes with any items such as newspapers, curtains etc.
Do not immerse the unit in water. If you spill liquid over it, dry it immediately with a soft, lint- free cloth.
Do not clean the unit with abrasive or corrosive materials.
Do not tamper with the unit’s internal components. This invalidates the warranty.
Only use fresh batteries. Do not mix new and old batteries.
Images shown in this manual may differ from the actual display.
When disposing of this product, ensure it is collected separately for special treatment and not as normal household waste.
Placement of this product on certain types of wood may result in damage to its finish for which Oregon Scientific will not be responsible. Consult the furniture manufacturer’s care instructions for information.
The contents of this manual may not be reproduced without the permission of the manufacturer.
Do not dispose old batteries as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.
Please note that some units are equipped with a battery safety strip. Remove the strip from the battery compartment before first use.
Note The technical specifications for this product and the contents of the user manual are subject to change without notice.
ABOUT OREGON SCIENTIFIC
Visit our website (www.oregonscientific.com) to learn more about Oregon Scientific products. If you’re in the US and would like to contact our Customer Care department directly, please visit: www2.oregonscientific.com/service/support
OR
Call 1-800-853-8883.
EU-DECLARATION OF CONFORMITY
Hereby, Oregon Scientific, declares that the Indoor / Outdoor Thermometer (Model JW102 ) is in compli- ance with the essential requirements and other rel- evant provisions of Directive 1999/5/EC.
A copy of the signed and dated Declaration of Conformity is available on request via our Oregon Scientific Customer Service.
COUNTRIES RTTE APPROVAL COMPLIED ALL EU countries, Switzerland 
and Norway N
