7. MEM: View current, maximum and minimum
temperature
8. °C / °F: Select temperature unit °C / °F
9. RESET: Reset unit to default settings
For best results:
Place the sensor out of direct sunlight and
moisture.
•
Do not place the sensor more than 30 meters (100
feet) from the main (indoor) unit.
•
Position the sensor so that it faces the main (indoor)
unit, minimizing obstructions such as doors, walls,
and furniture.
REMOTE SENSOR (THN122N)
•
Wireless Indoor / Outdoor Thermometer
with Digital Clock
Place the sensor in a location with a clear view to
the sky, away from metallic or electronic objects.
Position the sensor close to the main unit during cold
winter months as below-freezing temperatures may
affect battery performance and signal transmission.
1
•
Model: RAR681
1
•
2
3
USER MANUAL
The transmission range may vary depending on many
factors. You may need to experiment with various
locations to get the best results.
INTRODUCTION
4
Thank you for selecting the Oregon Scientific™ Wireless
2
Indoor
/
Outdoor Thermometer with Digital Clock
(RAR681). The main unit can support up to 3 sensors.
To purchase additional sensors, please contact your
local retailer.
Standard Alkaline batteries contain significant
amounts of water. Because of this they will freeze
in low temperatures of approximately -12°C (10°F).
1. LED status indicator:
Blinks red during data
transmission
1. Wall mount hole
2. RESET hole
3. CHANNEL switch
4. Battery compartment
Disposable Lithium batteries have
a
much lower
NOTE Please keep this manual handy as you use
your new product. It contains practical step-by-step
instructions, as well as technical specifications and
warnings you should know about.
threshold for temperature with an estimated freezing
range of below -40°C (-40°F).
2. Ventilation duct
GETTING STARTED
POWER
Wireless ranges can be impacted by a variety of factors
such as extremely cold temperatures. Extreme cold
may temporarily reduce the effective range between the
sensor and the base station. If the unit’s performance
fails due to low temperature, the unit will resume proper
functioning as the temperature rises to within the
normal temperature range (i.e. no permanent damage
will occur to the unit due to low temperatures).
OVERVIEW
Insert batteries before first use, matching the polarity
(+ and -).
FRONT VIEW
1
11
2
12
3
4
SENSOR DATA TRANSMISSION
13
14
5
6
Data is sent from the sensor(s) every 40 seconds. The
reception icon in the outdoor temperature area shows
the status.
15
7
8
ICON
DESCRIPTION
9
NOTE Install batteries in the remote sensor before the
main unit. Press RESET after each battery change. Do
not use rechargeable batteries. We recommend that
you use alkaline batteries with this product for longer
usage and lithium batteries in temperatures below
freezing.
Main unit is searching
for the sensor(s)
16
10
A channel has been found
Sensor 1 is sending data
The sensor cannot be found.
1. Sensor low battery warning
2. Outdoor temperature trend icon
3. Hi / lo alarm is displayed
4. Ice warning is active
5. Channel number and sensor reception status
6. Maximum / minimum outdoor temperature reading
7. Outdoor temperature reading
8. Alarm is set
9. Alarm is displayed
10. 12-hour clock
11. Indoor temperature display icon
12. Indoor temperature trend icon
13. Main unit low battery warning
14. Maximum / minimum indoor temperature reading
15. Indoor temperature reading
16. Time, alarm and date
shows when batteries are low.
UNIT
LOCATION
and - -.-
Main
Indoor temperature area
Outdoor temperature area
(Outdoor
temperature area)
Search for the sensor or
check batteries
Remote
To search for a sensor:
Simultaneously, press and hold MEM and CHANNEL
for 2 seconds.
REMOTE SENSOR
The sensor collects temperature readings approx. every
40 seconds and sends them to the main unit. The main
unit can collect data from up to 3 sensors.
NOTE If the sensor is still not found, check the batteries,
obstructions, and remote unit location.
To set up the sensor:
1. Remove the screws from the battery door.
2. Insert the batteries, matching the polarity (+ / -).
CLOCK
To set the clock:
1. Press and hold MODE for 2 seconds.
BACK VIEW
1
2
2. Press
and
to change the settings.
3. Press MODE to confirm.
7
4. The setting sequence is: 12 / 24 hour format, hour,
minute, year, date / month format, month, date, and
display language.
8
3
4
5
9
NOTE The language options are (E) English, (F)
French, (D) German, (I) Italian and (S) Spanish.
To switch the clock display:
Press MODE to toggle between:
3. Select a channel. Make sure you use a different
channel for each sensor.
4. Place the sensor near the main unit. Press RESET
on the sensor.
5. Simultaneously press CHANNEL and MEM on the
main unit to initiate signal sending between the
sensor and main unit.
Clock with seconds
Clock with day
Calendar
•
•
•
ALARM
6. Close the battery door and secure the screws.
7. Place the sensor in the desired location using the
table stand or wall mount.
To set the alarm:
1. Press ALARM to view the alarm.
the display.
will show on
6
2. Press and hold ALARM for 2 seconds.
3. Press
or
to change the hour / minute settings.
4. Press ALARM to confirm.
1. TEMP HI / LO
: Change settings or enable /
To activate or deactivate the alarm:
Press ALARM when in the alarm display.
when the alarm is set.
disable hi or lo temperature alarm for channel 1
: Increase / decrease setting; activate /
deactivate clock reception signal
appears
2.
/
3. CHANNEL: Switch remote sensor display
4. MODE: Change settings / display
5. ALARM: View alarm status; set alarm
6. Battery compartment
To silence the alarm and reset it for the next day:
Press ALARM.
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RAR681_EN.indd
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2005.12.9 2:21:22 PM
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