ACU-RITE 01021 User manual

Instruction Manual
Weather Station
models 01021 / 06047
SAVE THIS MANUAL FOR FUTURE REFERENCE.
Questions? Contact Customer Support at
[phone] or visit www.AcuRite.com.
CONTENTS
Unpacking Instructions ........... 2
Package Contents .................. 2
Product Registration ............... 2
Features & Benets: Lightning Sensor .. 3
Features & Benets: Display.... 4
Features & Benets: Rain Gauge .. 7
Setup .................................... 8
Lightning Sensor Setup ........... 8
Rain Gauge Setup.................. 9
Display Setup .......................10
Set the Time, Date & Units .....11
Backlight Settings..................11
Placement Guidelines ............13
Using the Weather Station.....15
Programmable Alarms...........16
Troubleshooting ....................18
Care & Maintenance.............19
Calibration .......................... 20
Specications....................... 22
FCC Information .................. 22
Customer Support ................ 23
Warranty............................. 23

2
Congratulations on your new AcuRite product. To ensure the best
possible product performance, please read this manual in its entirety
and retain it for future reference.
Unpacking Instructions
Remove the protective lm that is applied to the LCD screen prior to using this
product. Locate the tab and peel off to remove.
Package Contents
1. Display with Tabletop Stand
2. Lightning Sensor
3. Rain Gauge
4. Power Adapter
5. Instruction Manual
PRODUCT REGISTRATION
Register online to receive 1 year warranty protection
www.AcuRite.com
IMPORTANT PRODUCT MUST BE REGISTERED
TO RECEIVE WARRANTY SERVICE

3
Features & Benets
1. Integrated Hanger
For easy placement.
2. Wireless Signal Indicator
Flashes when data is being
sent to the companion unit.
3. Interference Indicator
Flashes when interference is
detected (see page 14).
4. A-B-C Switch
ID code that must match
display’s A-B-C switch to ensure
units synchronize.
5. Battery Compartment
6. Lightning Strike Indicator
Indicates a lightning strike has
occurred within 25 miles (40 km).
7. Battery Compartment Cover
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1
NOTE: Under no circumstances shall the Lightning Detector, Chaney Instrument
Co. or the Primex Family of Companies be held responsible for any damages
whatsoever that may result from the use of or inability to use this product, including
without limitation any indirect, incidental, special, exemplary or consequential
damages, which are expressly disclaimed. This disclaimer of liability applies to
any damages or injury caused by any failure of performance, error, omission,
inaccuracy, interruption, deletion, defect, delay in operation or transmission
software virus, communication failure, theft or destruction or unauthorized access
to, alteration of, or use of the product, whether for breach of contract, tortuous
behavior (including, without limitation, strict liability), negligence, or under any
other cause of action, to the fullest extent permissible by law. This does not affect
any statutory rights which may not be disclaimed. The contents of this product,
including all lightning and weather data are provided “as is” and without warranty
or condition of any kind, express or implied, including, without limitation, any
warranty of merchantability or tness for a particular purpose. Chaney Instrument
Co. & the Primex Family of Companies do not warrant that this product or the
data that it provides will be free of errors, interruptions, viruses or other harmful
components. Chaney Instrument Co. & the Primex Family of Companies do not
warrant the accuracy or reliability of any lightning strike alerts, weather data or
other information provided by the product. Chaney Instrument Co. & the Primex
Family of Companies reserve the right to alter the product or withdraw it from the
market at its sole discretion.
LIGHTNING SENSOR

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16 17 18 19 20 21
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3132
Features & Benets
FRONT OF DISPLAY
Features & Benets
FRONT OF DISPLAY

5
FRONT OF DISPLAY
1. Current Outdoor Temperature
Arrow indicates direction temperature
is trending.
2. Outdoor Low Temperature Record
Lowest temperature recorded since
midnight.
3. Outdoor High Temperature Record
Highest temperature recorded since
midnight.
4. Current Outdoor Humidity
Arrow indicates direction humidity
is trending.
5. Outdoor Low Humidity Record
Lowest humidity recorded since
midnight.
6. Outdoor High Humidity Record
Highest humidity recorded since
midnight.
7. Seasonal Information
Displays dew point calculation when
temperature is 79°F (26°C) or below.
Displays heat index calculation when
temperature is 80°F (27°C) or above.
8. Interference Indicator
Flashes when interference is detected
(see page 14).
9. Strike Counter
Displays most recent total of lightning
strikes that has been detected (today,
this week, this month).
10. Lightning Strike Indicator
Indicates a lightning strike has
occurred within 25 miles.
11. Alarm ON Indicator
Indicates alarm is activated to emit an
audible alert when conditions exceed
your presets (see page 16).
12. Lightning Sensor Low Battery
Indicator
13. Lightning Sensor Signal Strength
14. Rain Gauge Signal Strength
15. Rain Gauge Low Battery Indicator
16. RECORDS Button
Press to view historical records.
17. SELECT and SELECT Buttons
For setup preferences and display
navigation.
18. Icon
Indicates display is in auto-dimming
brightness mode (see page 11).
19. ENTER
SET Button
For setup preferences.
20.Display Low Battery Indicator
21. ALARMS Button
For alarm setup.
22.Date
23.Clock
Automatically updates for
Daylight Saving Time.
24.Rainfall
Accumulates data during rainfall.
25. FLOODING POSSIBLE Indicator
Indicates conditions are present that
could lead to ooding.
26.Estimated Distance to Storm Front
Updates with latest lightning strike
detected today.
27. Current Barometric Pressure
Arrow icon indicates direction
pressure is trending.
28. Icon
Disappears after weather forecast
self-calibration is complete.
29.12 to 24 Hour Weather Forecast
Self-Calibrating Forecasting pulls data
from the outdoor sensor to generate
your personal forecast.
30.Storm Alert Indicator
Activates when barometric pressure drops.
31. Backlight Button
For momentary backlight and
dimmer settings.
32.Freeze Alert Indicator
Indicates temperature is below
freezing (32°F; 0°C).

6
2
3
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1
BACK OF DISPLAY
1. Integrated Hang Hole
For easy wall mounting.
2. RESET Button
Press and release for full reset to
factory defaults.
3. Plug-in for Power Adapter
4. Power Adapter
5. Battery Compartment Cover
6. Battery Compartment
7. A-B-C Switch
ID code that must match the lightning
sensor and rain gauge's A-B-C
switches to ensure units synchronize.
4
Features & Benets
5

7
RAIN GAUGE
1. Rain Gauge Cover
2. Rain Gauge Tipping Cups
Collects and empties rain for
continuous rain measurement.
3. Battery Compartment &
Electronics Box
4. Rain Gauge Base
5. A-B-C Switch
ID code that must match display’s A-B-C
switch to ensure units synchronize.
A B C
SQUEEZE
4
5
1
2
3
Features & Benets

8
Lightning Sensor Setup
2Install Batteries
4 AA batteries
1A-B-C Switch
Set to match display
& rain gauge.
A B C
Set the A-B-C Switch
Locate the A-B-C switch inside the
battery compartment. It can be
set to A, B or C. However, you
must select the same letter choices
for the display, rain gauge and
lightning sensor in order for the
units to synchronize.
Install or Replace Batteries
AcuRite recommends high quality
alkaline or lithium batteries in
the wireless sensor for the best
product performance. Heavy duty
or rechargeable batteries are not
recommended.
The sensor requires lithium
batteries in low temperature
conditions. Cold temperatures can
cause alkaline batteries to function
improperly. Use lithium batteries in
the sensor for temperatures below
-4ºF / -20ºC.
1. Slide off the battery
compartment cover.
2. Insert 4 x AA batteries into
the battery compartment, as
shown. Follow the polarity
(+/-) diagram in the battery
compartment.
3. Replace the battery cover.
1
2
SETUP
PLEASE DISPOSE OF OLD OR DEFECTIVE BATTERIES IN AN ENVIRONMENTALLY SAFE
WAY AND IN ACCORDANCE WITH YOUR LOCAL LAWS AND REGULATIONS.
BATTERY SAFETY: Clean the battery contacts and also those of the device prior to battery installation. Remove batteries from equipment that will not be
used for an extended period of time. Follow the polarity (+/-) diagram in the battery compartment. Promptly remove dead batteries from the device. Dispose of used
batteries properly. Only batteries of the same or equivalent type as recommended are to be used. DO NOT incinerate used batteries. DO NOT dispose of batteries in fire,
as batteries may explode or leak. DO NOT mix old and new batteries or types of batteries (alkaline/standard). DO NOT use rechargeable batteries. DO NOT recharge
non-rechargeable batteries. DO NOT short-circuit the supply terminals.

9
Install or Replace Batteries
AcuRite recommends high quality alkaline batteries for the best product
performance. Heavy duty or rechargeable batteries are not recommended.
1. Separate rain gauge cover from the base by gently
squeezing tabs and pulling the cover upwards.
2. Remove battery box by squeezing the two tabs on each
end together (take note of battery box orientation, for
re-installation).
3. Remove and discard cardboard rain gauge stabilizer.
4. Insert 2 x AA batteries into the battery compartment as
shown. Follow the polarity (+/-) diagram in the
battery compartment.
5. Securely place the battery box back into the rain
gauge base.
6. Securely re-attach the rain gauge cover onto rain
gauge base.
1
5
6
3
2
SQUEEZE
SQUEEZE TABS TO OPEN
SQUEEZE
LARGE
TAB
SQUEEZE
LARGE
TAB
4
Rain Gauge Setup
A B C
1A-B-C Switch
Set to match display
and lightning sensor.
Set the A-B-C Switch
Locate the A-B-C switch inside the
battery compartment. Set the A-B-C
switch to A, B or C. You must select the
same letter choices for the rain gauge,
display and lightning sensor in order
for the units to synchronize.

10
Display Setup
Set the A-B-C Switch
Locate the A-B-C switch inside
the battery compartment. It can
be set to A, B or C. However,
you must select the same
letter choices for the display,
rain gauge and lightning
sensor in order for the units to
synchronize.
Install or Replace Backup
Batteries
(optional)
1. Remove the battery
compartment cover.
2. Insert 3 x AA alkaline
batteries into the battery
compartment, as shown.
Follow the polarity
(+/-) diagram in the
battery compartment.
3. Replace the battery cover.
Plug in Power Adapter
For the best performance, plug
in the power adapter as the main
power source for this product.
2
3
1
1A-B-C Switch
Set to match
rain gauge
and lightning
sensor.
3Plug in
Power
Adapter
IMPORTANT: Batteries
are a backup power
source to preserve records
in the event of a power
outage. Power adapter
is recommended as the
primary power source to
enjoy the full functionality
of this product.
2Install Backup Batteries
(optional)
3 AA batteries
PLEASE DISPOSE OF OLD OR DEFECTIVE BATTERIES IN AN ENVIRONMENTALLY SAFE
WAY AND IN ACCORDANCE WITH YOUR LOCAL LAWS AND REGULATIONS.
BATTERY SAFETY: Clean the battery contacts and also those of the device prior to battery installation. Remove batteries from equipment that will not be
used for an extended period of time. Follow the polarity (+/-) diagram in the battery compartment. Promptly remove dead batteries from the device. Dispose of used
batteries properly. Only batteries of the same or equivalent type as recommended are to be used. DO NOT incinerate used batteries. DO NOT dispose of batteries in fire,
as batteries may explode or leak. DO NOT mix old and new batteries or types of batteries (alkaline/standard). DO NOT use rechargeable batteries. DO NOT recharge
non-rechargeable batteries. DO NOT short-circuit the supply terminals.
A B C

11
Set the Time, Date & Units
The display will automatically enter SET MODE after the unit has powered on.
Once in set mode, the preference you are currently setting will blink on the display.
To adjust the currently selected item, press and release the “SELECT” or “SELECT“
buttons (press and HOLD to fast adjust).
To save your adjustments, press and release the “ENTER
SET ” button again to adjust
the next preference.
The preference set order is as follows:
TIME ZONE (PST MST CST EST AST HAT AKT NAT)
AUTO DST (YES, NO)*
CLOCK HOUR
CLOCK MINUTE
CALENDAR MONTH
CALENDAR DATE
CALENDAR YEAR
TEMPERATURE UNITS (°F or °C)
PRESSURE UNITS (inHg or hPa)
DISTANCE UNITS (mi or km)
RAINFALL UNITS (in. or mm)
*If you live in an area that observes Daylight Saving Time, DST should be set
to YES, even if it is not currently Daylight Saving Time.
You will automatically exit SET MODE if no buttons are pressed for 10 seconds.
Enter SET MODE at any time by pressing the “ENTER
SET ” button.
Display Backlight Settings
This weather station’s color display features three different lighting settings:
High (100%) brightness, Medium (60%) brightness and Low (15%) brightness.
Using battery power alone, the backlight is available momentarily for 10
seconds by pressing the backlight button.
When the display is powered with the power adapter, the backlight remains on
at 100% brightness. Press the backlight button once to dim to 60% brightness;
press again to dim to 15%, press a 3rd time to enter “AUTO DIM” mode.
“ ” appears to the left of the clock to indicate that auto-dim mode is ON.
NOTE: Pressing and holding the backlight button for 5 seconds will disable
the backlight. Once any button is pressed, the backlight will return to your
selected setting.
AUTO DIM MODE: Automatically adjusts display brightness based on time of day.
6:00 a.m. - 9:00 p.m. = 100% brightness
9:01 p.m. - 5:59 a.m.= 15% brightness

12
Rain Gauge Installation
• To ensure accurate rain measurement, the rain gauge MUST be placed on a
at, level surface.
• Ensure the rain gauge is not placed in a low spot that could become ooded
or in an area where there are obstructions above it.
DO NOT
PLACE IN WATER OR
IN UNEVEN OR LOW
SPOTS THAT MAY
BECOME FLOODED.
DO
PLACE ON A LEVEL
SURFACE AT LEAST
3 FEET FROM THE
GROUND WITH NO
OBSTRUCTIONS ABOVE.
DO NOT
PLACE IN AREAS WHERE
PLANT GROWTH CAN
GROW INTO CASE AND
OBSTRUCT RAIN FLOW
THROUGH COLLECTOR
DO NOT
PLACE IN AN
AREA WITH
OBSTRUCTIONS ABOVE
OK
1. Separate the rain gauge cover from the rain gauge base.
2. Locate the two holes on the rain gauge base.
3. Fasten the rain gauge base to a sturdy surface, like a deck railing or a fence
post, with screws (included) using hand tools (power tools may slip during
installation, causing damage to the rain gauge).
INSTALL 2 SCREWS USING
HAND TOOLS ONLY.
THEN RE-ATTACH UPPER CASING
SQUEEZE
SQUEEZE TABS TO OPEN

13
Placement for Maximum Accuracy
AcuRite sensors are sensitive to surrounding environmental conditions. Proper
placement of the display, 5-in-1 sensor and lightning sensor is critical to the
accuracy and performance of this product.
Display Placement
Place the display in a dry area free of dirt and dust. Display stands
upright for tabletop use or is wall-mountable.
Lightning Sensor Placement
Sensor must be placed outside to observe outdoor conditions.
Sensor is water resistant and is designed for general outdoor use,
however, to extend its life place the sensor in an area protected
from direct weather elements.
Hang the sensor using the integrated hanger, or by using string (not
included) to hang it from a suitable location, like a well covered
tree branch. The best location is 4 to 8 feet above the ground with
permanent shade and plenty of fresh air to circulate around the sensor.
Important Placement Guidelines
• To maximize communication, install the rain gauge at least 3 ft (.9m)
above the ground.
• Display and rain gauge must be within 100 ft (30 m) of each other.
• To ensure accurate temperature measurement, place lightning sensor out
of direct sunlight and away from any heat sources or vents.
• Display and lightning sensor must be within 330 ft (100 m) of each other.
• To maximize wireless range, place units away from large metallic items, thick
walls, metal surfaces, or other objects that may limit wireless communication.
• To prevent wireless interference, place all units at least 3 ft (.9 m) away
from electronic devices (TV, computer, microwave, radio, etc.).
TV 3
(100 meters)
(330 feet maximum)
(30 meters)
(100 feet maximum)
(.9 m)
AT
LEAST
APART

14
Lightning Sensor Installation Guidelines
False Detection
This sensor features advanced technology to distinguish between lightning
strikes and interference, however in rare cases the sensor may "false detect"
lightning activity due to interference. In these situations, verify there is no
lightning in the area and then relocate the sensor. If the false detections persist,
identify and relocate the source of interference or relocate the sensor.
Interference
The sensor features enhanced interference rejection capabilities to prevent
false lightning detection. When the detector cannot detect lightning due to
interference from nearby equipment, the sensor's interference indicator will ash.
• Electric motors (windshield wiper motor or fan motors in cars, hard drive and
optical drive motors on your PC and AV equipment, well pumps, sump pumps)
• CRT monitors (PC monitors, TV's)
• Fluorescent light xtures (turned off or on)
• Microwave ovens (while in use)
• PC's and mobile phones
WARNING: Take shelter IMMEDIATELY when lightning is present, whether or
not it has been detected by the Lightning Detector. If you are concerned about
lightning strikes, follow all safety precautions to keep yourself and others safe.
DO NOT rely on this Lightning Detector as your only source for warnings
about potentially deadly lightning strikes or other severe weather conditions.
Setup is Complete
The rain gauge and lightning sensor will now synchronize with the display. It
may take a few minutes for synchronization to complete. Please refer to the
troubleshooting section of this manual if anything appears to be functioning
improperly.

15
OPERATION
Using the Weather Station
Learning Mode
Self-Calibrating Forecasting uses a unique algorithm to analyze changes in
pressure over a time period (called Learning Mode) to determine your altitude.
After 14 days, the icon disappears from the display screen. At this point,
the self-calibrated pressure is tuned in to your location and the unit is ready for
superior weather prediction.
Weather Forecast
AcuRite’s patented Self-Calibrating Forecasting provides your personal forecast
of weather conditions for the next 12 to 24 hours by collecting data from
the sensor in your backyard. It generates a forecast with pinpoint accuracy -
personalized for your exact location.
Barometric Pressure
Subtle variations in barometric pressure greatly affect the weather. This
weather station displays the current pressure with an arrow icon to indicate the
direction the pressure is trending (FALLING, STEADY, or RISING).
Lightning Detection
The lightning sensor detects cloud-to-cloud, cloud-to-ground and intra-cloud
lightning. When lightning is detected, the sensor will beep and the strike indicator
will ash for each of the rst 10 strikes. After 10 strikes, the sensor will enter silent
mode but will continue to ash. The sensor will stay in silent mode for 2 hours after
the last lightning detection.
The display will automatically show the most recent lightning event (TODAY, WEEK,
MONTH, YEAR). The icon appears on the display when lightning is detected
and keeps a running count of lightning strikes detected. The display shows an
estimate of the distance to the front of today’s lightning-producing storm.
STORM
CONDITIONS
DEVELOPING
(Rain = Flashing)
SNOW
LIKELY
LIGHT RAIN
LIKELY
PARTLY
CLOUDY CLEAR SKIES
CLOUDY
View the complete list of icons at www.AcuRite.com/acurite-icons

16
Programmable Weather Alarms
Each selectable weather category features an alarm option. When an alarm sounds,
the display emits audible beeping and ashes the affected category, its alarm
settings, and any other relevant data.
Alarms can be customized to alert you when your programmed value is reached.
Alarms include:
OUTDOOR TEMPERATURE
OUTDOOR HUMIDITY
LIGHTNING STRIKES (ON/OFF only; ON by default)
RAINFALL
Setup an Alarm
1. Press and release the “SELECT” or the “SELECT” button until the reading for
which you wish to set an alarm is shown on the display.
2. Press and release the “ALARMS” button until is shown on the display.
4. Press and release the “ENTER
SET ” button. If applicable, the current LOW alarm value will
ash on the display.
5. Press and release the “SELECT” or “SELECT” buttons to adjust the alarm’s LOW value.
6. Press and release the “ENTER
SET ” button. The current HIGH alarm value will ash on
the display.
7. Press and release the “SELECT” or “SELECT” buttons to adjust the alarm’s HIGH value.
8. Press and release the “ENTER
SET ” button to save your adjustments.
9. Repeat steps 1-8, as needed.
Disable an Alarm
1. Press and release the “SELECT” or the “SELECT” button until the reading for which you
wish to disable an alarm is shown on the display.
2. Press and release the “ALARMS” button until is shown on the display.
3. Press and release the “ENTER
SET ” button until the display returns to normal viewing mode.
NOTE: To disable ALL alarms at once, press and HOLD the “ALARMS” button for
5 seconds.

17
High & Low Records
Today’s high and low records are displayed for outdoor temperature and humidity.
Today’s records automatically clear at 12:00am midnight every day.
Historical records can also be viewed by accessing the records menu. Records include:
OUTDOOR TEMPERATURE
OUTDOOR HUMIDITY
BAROMETRIC PRESSURE
LIGHTNING STRIKES
RAINFALL
To view historical records, press and release the RECORDS button to cycle through
all-time records. You will automatically exit the records menu if no buttons are
pressed for 5 seconds.
To view or clear historical records for a specic reading, press and release the
“SELECT” or the “SELECT” button until the desired reading is shown on the display. Then
press and release the “RECORDS” button to cycle through available record values
for that reading. The date and timestamp of the record are shown near the clock.
You will automatically exit the records menu if no buttons are pressed for
5 seconds.
To clear a record, press and hold both the “SELECT” and “SELECT” buttons simultaneously
for 2 seconds while viewing the record you wish to clear. Dashes display to conrm
you have cleared the record.
Flooding Possible Indicator
This weather station features an algorithm that predicts when conditions are present
for ooding. The indicator ashes on the display when these conditions are
present.
Flood conditions include:
> 3” (76.2 mm) in the last 7 days, and then >0.7” (17.78 mm) in the last
2 hours or 1” (25.4 mm) in the last 24 hours
> 2.3” (58.4 mm) in the last 4 days, and then >0.7” (17.78 mm) in the last
2 hours or 1” (25.4 mm) in the last 24 hours
> 1.5” (38.1 mm) in the last 2 days, and then >0.7” (17.78 mm) in the last
2 hours or 1” (25.4 mm) in the last 24 hours
> 1.4” (35.6 mm) in the last 2 hours
> 1.6” (40.6 mm) in the last 8 hours
> 1.8” (45.7 mm) in the last 24 hours

18
Troubleshooting
Problem Possible Solution
No lightning sensor or
rain gauge reception
no bars
If the wireless signal indicator shows no bars:
• Relocate the display and/or the lightning sensor.
The units must be within 330 ft (100 m) of each other.
• Relocate the display and/or the rain gauge.
The units must be within 100 ft (30 m) of each other.
• Make sure all units are placed at least 3 feet
(.9 m) away from electronics that may interfere
with the wireless communication (such as TVs,
microwaves, computers, etc).
• Use standard alkaline batteries (or lithium batteries
in sensor when temperature is below -4ºF/-20ºC).
Do not use heavy duty or rechargeable batteries.
NOTE: It may take a few minutes for display and
sensor to synchronize after batteries are replaced.
Display screen
not working
• Check that the power adapter is plugged into the
display and an electrical outlet.
Outdoor temperature
and/or humidity is
ashing or showing
dashes
Flashing of the outdoor temperature and/or humidity
is generally an indication of wireless interference.
1. Bring the lightning sensor indoors and remove at
least one battery. Remove the power adapter
and/or batteries from the display.
2. Reinstall the battery into the lightning sensor.
3. Reinstall the power adapter/batteries into
the display.
4. Let the units sit within a couple feet of each other
for a few minutes to gain a strong connection.
Inaccurate
temperature
or humidity
• Make sure the lightning sensor is placed out of
direct sunlight and away from any heat sources or
vents (see page 13).
Can the rain gauge
remain outdoors in
freezing temperatures?
No, the rain gauge should be brought indoors when
there is a possibility of freezing temperatures. Water
expands when it freezes. If any water is left within the
rain gauge during a freeze, it can crack the plastic and
cause permanent damage.

19
Troubleshooting
Problem Possible Solution
Inaccurate forecast
• Weather Forecast icon predicts conditions for the
next 12 to 24 hours, not current conditions.
• Has the icon disappeared from the display?
Learning Mode must complete before forecast and
pressure will be accurate.
• Allow unit to run continuously for 33 days. Battery
removal or resetting the display will restart
Learning Mode. After 14 days, forecast should be
fairly accurate, however Learning Mode calibrates
for a total of 33 days.
Interference
Indicator is ashing
• Relocate the lightning sensor.
• Make sure the lightning sensor is placed at least
3 feet (.9 m) away from electronics that may cause
interference (see page 14).
If your AcuRite product does not operate properly after trying
the troubleshooting steps, visit www.AcuRite.com or call
[phone] for assistance.
Care & Maintenance
Display Care
Clean with a soft, damp cloth. Do not use caustic cleaners or abrasives. Keep away from
dust, dirt and moisture. Clean ventilation ports regularly with a gentle puff of air.
Lightning Sensor Care
Clean with a soft, damp cloth. Do not use caustic cleaners or abrasives.
Rain Gauge Care
Clean with a soft damp cloth. Do not use caustic cleaners or abrasives that could
mar the polished surface of the rain gauge or tipping cups. If the collector becomes
dirty, rain water may not ow correctly through the rain gauge. Some environmental
conditions may require more frequent, periodic cleaning of the collector. After
a cleaning, it is recommended to apply a small amount of liquid water repellent
(found in the automotive section) to the tipping cups and collector funnel for
optimal rain collection.
The rain gauge cannot be used in the winter during freezing temperatures. Water
expands when it freezes. If any water is left within the unit during a freeze, it can
crack the plastic and permanently damage the unit.

20
Calibration
Calibrate Temperature, Humidity & Barometric Pressure
The outdoor temperature and humidity readings, and barometric pressure can be
calibrated on the display to improve accuracy. Calibration can improve accuracy
when sensor placement or environmental factors impact the data accuracy.
1. To access calibration mode, press AND HOLD the “SELECT”, “ENTER
SET ”, and “SELECT”
buttons simultaneously for at least 5 seconds.
2. To adjust the currently selected (ashing) item, press and release the “SELECT“ or
“
SELECT“ buttons to calibrate the data value higher or lower from the actual reading.
3. To save your adjustments, press and release the “ENTER
SET ” button to adjust the next
preference. The “ ” icon will remain illuminated next to calibrated values.
The preference set order is as follows:
OUTDOOR TEMPERATURE
OUTDOOR HUMIDITY
BAROMETRIC PRESSURE (must be set to MANUAL mode to calibrate)*
*To change from auto to manual pressure mode and vice versa, press AND HOLD
the “ENTER
SET ” button for 8-10 seconds. The display indicates the current pressure mode
selected, “auto” or “manual”.
After 5-10 seconds of inactivity, the display will save the adjustments and exit
calibration mode.
NOTE: Calibrations will be erased if the display is reset or if batteries are removed
and the power adapter is unplugged.
Calibrate the Rain Gauge
The rain gauge can be calibrated to improve accuracy.
Items Needed: rain gauge, display, plastic cup, pin, screw driver
1. First, place the rain gauge on a level surface.
2. Place the display close by so you can monitor it during calibration.
3. Make a pin hole in the bottom of a plastic cup. Hold the cup over the rain
gauge and ll it with exactly 1 cup (8 oz.) of water, allowing the water to
slowly drip into the rain gauge. You should hear the internal cups tipping and
see the water drain through the rain gauge.
4. A few seconds after each cup tip, the display will display rainfall in
approximately 0.01”
(0.2 mm) or more increments.
5. The cup of water should take a few minutes to empty; a quicker period will result
in an inaccurate calibration. Try to simulate a normal steady rainfall. When the
cup is empty of water, the display should register 1.68”
(42.67 mm).