3-in-1 Sensor Installation


3-in-1 Sensor Installation

3 Features Built into 1 Sensor

Temperature, Humidity & Wind Speed

Unlike regional weather predictions from sources like the news or online, AcuRite forecasting products rely on sensors that collect organic data right from your backyard. AcuRite's sensor based weather stations track specific sets of weather related variables, like changes in temperature, humidity, and barometric pressure to generate a forecast with pinpoint accuracy.

The AcuRite 3-in-1 sensor is designed to be easy to install and use, without compromising any of the professional weather tracking features you want.


Step-by-Step Installation Directions

STEP 1: Press the release lever and pull off sensor bottom for battery access.

STEP 2: Remove the battery cover and locate the A-B-C switch inside the battery compartment. Set the A-B-C switch to A, B or C. Be sure to choose the same channel that the A-B-C switch on the display is set to.

STEP 3: Insert 4 AA batteries into the sensor, following the polarity (+/-) diagram in the battery compartment. DO NOT use heavy duty or rechargeable batteries. View battery guidelines below. Close the battery compartment cover. 

STEP 4: Secure your mounting pole into the ground or fasten the mounting base to a post or pole using the 4 longer screws included in the hardware bag. 

STEP 5: Place the sensor on top of the mounting pole or mounting base. Install at least 5 feet off the ground for more accurate wind measurement.

STEP 6: Secure the sensor onto the mounting pole or mounting bracket using screws and a screwdriver. 

STEP 7: Ensure the sensor is level. We recommend using a bubble level (not included).

Your 3-in-1 Sensor is now ready to use!

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Installation Guidelines

After installing batteries into the 3-in-1 sensor, you must choose a location to install the sensor. Choose an open location with no obstructions around the sensor for accurate wind measurement. To ensure that your Professional Weather Station performs at its best, follow these guidelines:

Place units away from large metallic items, thick walls, metal surfaces, or other objects that may limit wireless communication.

Place both units at least 3 feet (.9 m) away from electronic devices (laptop, TV, computer, microwave, radio, etc.).

Position sensor away from heaters, air conditioners, chimneys, exhaust vents, asphalt and concrete (surfaces that radiate heat).

Avoid installing the sensor near pools, spas, or other bodies of water. Water sources may impact humidity accuracy.

DO NOT install the sensor where it will be sprayed by a sprinkler system. This may force water inside the sensor.

DO NOT mount the sensor with obstructions around it. Consider a location that is a wide open area, with few structures around to ensure accurate wind measurement.

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Battery Guidelines

Use lithium batteries in the sensor when temperatures can reach below -4ºF (-20ºC). When inserting batteries, follow the polarity (+/-) diagram in the battery compartment. Only batteries of the same or equivalent type as recommended are to be used. It may take up to 20 minutes for the main unit to re-synchronize with the sensor when batteries are replaced.

DO NOT mix old and new batteries or types of batteries (alkaline / standard). DO NOT use rechargeable batteries. DO NOT use heavy duty batteries (gold, max, super, ultra, etc.). DO NOT short-circuit the supply terminals.

NOTE: The sensor features an integrated solar cell for collecting sunlight and converting it into usable power, however this feature is intended to EXTEND the life of the batteries you install. The sensor REQUIRES batteries to operate, and will not function on solar power alone. BATTERIES MUST BE INSTALLED FOR THE SENSOR TO OPERATE.

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3-in-1 Sensor Maintenance

Clean the housing of the sensor with a damp cloth. Do not use caustic cleaners or abrasives.

Insects may cause obstructions and interrupt data by nesting in or on the 3-in-1 sensor. To limit this problem, spray sensor with a household insect repellent. Consult the insect repellent instructions prior to use.

The 3-in-1 sensor will not be damaged by freezing conditions.

>Remove foreign matter from the outside of the sensor for free movement of the wind anemometer. If needed, use a small amount of spray lubricant, clear silicone or graphite powder on the anemometer for improved movement.

Clean the battery contacts located under the battery door on the bottom of the sensor. Remove batteries from equipment which is not to 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 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. Use lithium batteries in sensor when temperature is below -4ºF (-20ºC).



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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 for successful synchronization. Sometimes changing to a different channel can help.


• Relocate the display unit and/or the 3-in-1 sensor. The units must be within 330ft (100m) of each other• Make sure both units are placed at least 3 feet (.9m) away from electronics that may interfere with the wireless communication (such as TVs, microwaves, laptops, computers, etc).• Change the batteries. 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. View battery guidelines.
• 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.


• Make sure the sensor is placed out of direct sunlight and away from any heat sources or vents.
• Make sure the sensor is positioned away from moisture sources.
• Make sure the sensor is mounted at least 5 ft off of the ground.


• 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.

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Related Articles:

AcuRite 3-in-1 Sensor Features

View Installation Photos