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00639 Weather Station

00639 AcuRite Wireless Weather Station

Manual AcuRite Weather Station 00639  [PDF]
Sensor Installation 3-in-1 sensor installation
Icon Definitions Click here
Replacement Parts Add-on or replacement display: 639RX
3-in-1 Sensor: 3N1TXR
Replacement 3-in-1 Sensor Wind Cups: 3N1WC
Replacement 3-in-1 Sensor Wind Cups Assembly: 3N1WCBSA
Replacement 3-in-1 Sensor Mounting Sleeve: 3N1MS
Replacement 3-in-1 Sensor Mounting Bracket: 3N1MB


Indoor Temperature Range: 32º to 122º F, 0º C to 50º C
Indoor Humidity Range: 16% to 98% RH
Data Reporting: Indoor data: 60 second updates
Power: 3 AA alkaline batteries


Outdoor Temperature Range: -40º to 158º F, -40º C to 70º C
Outdoor Humidity Range: 1% to 99% RH
Wind Range: 0 to 99 MPH
RF (wireless) Range: 330' (100m)
Data Reporting18 second updates
Wireless Frequency: 433 MHz
Power: 4 AA alkaline or lithium batteries; Lithium batteries recommended for temperatures below -4°F/-20ºC


Temperature Accuracy: up to +/- 4°F
Humidity Accuracy: +/- 5%
Wind Speed Accuracy: up to +/- 5mph

Problem Possible Solution
is flashing or
showing dashes
Flashing of the outdoor temperature may be an indication of wireless interference.
• Make sure the A-B-C switch in the battery compartments of both the display unit and sensor are switched to the same letter. You may choose A, B or C; but both units must match to sync up. Sometimes changing to a different channel can help.
• Synchronize the units using the steps detailed below.

No outdoor 

• Relocate the display unit and/or the 3-in-1 sensor. The units must be within 330 ft (100 m) of each other.
• Make sure both 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 up to 20 minutes for display unit and sensor to synchronize after batteries are replaced.

• Synchronize the units:
1. Bring both the sensor and display unit indoors and remove at least one battery from each.
2. Make sure the A-B-C switch on both units match. Sometimes changing to a different channel can help.
3. Reinstall the battery in the outdoor sensor.
4. Reinstall battery into the display unit.
5. Let the units sit within a couple feet of each other for about 20 minutes to gain a strong connection.

• Weather Forecast icon predicts conditions for the next 12 to 24 hours, not current conditions.
• Has Learning Mode icon disappeared from the display unit? 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 unit will restart Learning Mode. After 14 days, forecast should be fairly accurate, however Learning Mode calibrates for a total of 33 days.
or humidity
• Make sure both the display unit and 3-in-1 sensor are placed away from any heat sources or vents.
• Make sure both units are positioned away from moisture sources.
• Make sure 3-in-1 sensor is mounted at least 5 ft off of the ground.
wind readings
• What is wind reading being compared to? Pro weather stations are typically mounted at 30 ft high or more. Make sure to compare data using a sensor positioned at the same mounting height.
• Check location of the sensor. Ensure it’s mounted a minimum of 5 ft in the air with no obstructions around it (within several feet).
• Ensure wind cups are spinning freely. If they hesitate or stop try lubricating with graphite powder or spray lubricant.
Display screen
not working
• Check that the batteries are installed correctly. Batteries may need to be replaced.
• Reset the display by pressing the reset button, located on the back of the display unit. Date and time will need to be entered after a reset.
How to Mount
the 3-in-1 Sensor
• Mount the sensor at least 5 ft off the ground (higher is better for accurate wind measurements) in an open area NO FURTHER than 330 feet (100 meters) from the display console. A typical installation would involve mounting the bracket to a secured length of 2 x 4 or 4 x 4 wood, 3/4" pole, etc. (not included). For more information, visit:


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Models: 00639, 00639WDI