Wireless Weather Station with
Temperature / Humidity Display and
Self - Setting Atomic Clock
Thank you for selecting this Oregon Scientific
Weather Station with Temperature / Humidity Display and
Self - Setting Atomic Clock (BAR688HGA). This clock
is supplied with a remote sensor (THGR122N) and can
support up to 3 sensors in total (additional sensors sold
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
2. Weather Forecast Area
3. Outdoor Temperature Area
4. Indoor Temperature Area
5. Clock / Alarm Area
1. TEMP / HUMIDITY HI / LO
: Change settings or
enable / disable hi or lo temperature / humidity alarm
for channel 1
: Increase / decrease setting; activate / deactivate
clock reception signal
3. CHANNEL: Switch remote sensor display
4. HEAT INDEX: Display heat index
5. MODE: Change settings / display
6. ALARM: View alarm status; set alarm
7. Battery compartment
8. MEM: View current, maximum and minimum
temperature / humidity
9. PRESSURE: Select pressure unit; set altitude
10. °C / °F: Select temperature unit
11. RESET: Reset unit to default settings
Weather Forecast Area:
1. Pressure trend
2. Weather forecast
3. Comfort zone
4. Pressure icon
5. Altitude icon
6. Pressure / Altitude unit
7. UV index icon
Outdoor Temperature Area:
1. Heat index icon
2. Hi / lo temperature alarm
3. Sensor reception icon
4. Sensor battery low
5. Max / min icon
6. Temperature display
Ice warning is active
8. Hi / lo humidity alarm
9. Temperature trend
10. Humidity trend
11. Humidity display
Indoor Temperature Area:
1. Internal sensor icon
2. Max / min icon
3. Temperature display
4. Temperature trend
5. Humidity trend
6. Humidity display
Clock / Alarm Area:
1. Alarm set
2. AM / PM icon
3. Clock signal reception
4. Low battery icon
6. Alarm mode icon
7. Moon phase
REMOTE SENSOR (THGR122N)
1. LED status indicator:
1. Wall mount hole
Blinks red during data
2. RESET hole
3. CHANNEL switch
2. LCD screen
4. Battery compartment
SETTING UP THE CLOCK
Insert batteries before first use, matching the polarity (+
and -). RESET after each battery change.
indicates main unit batteries are low.
Do not use rechargeable batteries. We
recommend that you use alkaline batteries with this product
for longer usage and lithium batteries in temperatures
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.
To set up the sensor:
1. Remove the screws from the battery door.
2. Insert the batteries, matching the polarity (+ / -).
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
5. Simultaneously press CHANNEL and MEM on the main
unit to initiate signal sending between the sensor and
6. Close the battery door and secure the screws
7. Place the sensor in the desired location using the table
stand or wall mount.
For best results:
• Place the sensor out of direct sunlight and moisture.
• Do not place the sensor more than 30 m (100 ft) from
the main (indoor) unit.
• Position the sensor so that it faces the main (indoor)
unit, minimizing obstructions such as doors, walls, and
• 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.
2005.12.2, 2:53 PM
The transmission range may vary depending on many
factors. You may need to experiment with various locations
to get the best results.
Standard Alkaline batteries contain significant amounts of
water. Because of this they will freeze in low temperatures
of approximately -12°C (10°F). Disposable Lithium
batteries have a much lower threshold for temperature
with an estimated freezing range of below -30°C (-22°F).
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).
SENSOR DATA TRANSMISSION
Data is sent from the sensor(s) every 40 seconds. The
sensor reception icon in the remote sensor area shows
Main unit is searching
for the sensor(s)
A channel has been found
Sensor 1 is sending data
and "- - . -"
The sensor cannot be found.
Search for the sensor or check
To search for a sensor:
Simultaneously, press and hold MEM and CHANNEL for
NOTE If the sensor is still not found, check the batteries,
obstructions, and remote unit location.
This product is designed to synchronize its date and time
automatically once it is within range of the WWVB-60 signal
from the atomic clock in Boulder, Colorado.
The sensor collects the radio signals whenever it is within
1500 km (932 miles) of a signal.
NOTE Initial reception takes 2-10 minutes for first set up
or when RESET is pressed. Once complete, the reception
icon will stop blinking. If the signal is weak, it can take up
to 24 hours to get a valid signal.
Clock signal reception indicator:
To enable and force a signal search:
Press and hold
for 2 seconds.
To disable the signal reception:
Press and hold
for 2 seconds.
flashes when it is disabled.
To manually set the clock make sure the clock signal
reception is disabled.
1. Press and hold MODE for 2 seconds.
2. Select the US time zone (Pacific (P), Eastern (E),
Central (C) and Mountain (M)), hour, minute, year,
month, day and language. Press
to change the
3. Press MODE to confirm.
NOTE The language options are English (E), German (D),
French (F), Italian (I), and Spanish (S).
Press MODE to choose between the clock with seconds
and clock with weekday display modes.