AcuRite Notos Review: Wind Speed Without the Wi-Fi

Lena Thornton Weather Station Analyst and CWOP Contributor

The AcuRite Notos is AcuRite's 3-in-1 weather station. One outdoor sensor measures temperature, humidity and wind speed, and sends the readings to an indoor display every 18 seconds. There is no rain gauge and no wind vane, so it tells you how hard the wind blows, not where it comes from.

This review sticks to what AcuRite documents: what the sensor measures, which Notos versions exist, how the forecast learns, how to mount the sensor and what to do when the readings stop. Where we give our own opinion, we say so.

AcuRite Notos 3-in-1 Sensor: Key Facts

In plain words: close enough for the garden, the patio and "do I need a jacket", but not a lab instrument. AcuRite's general accuracy standards for the Notos sensor are temperature ±2°F (±1°C), humidity ±5% RH and wind speed ±2 mph below 10 mph (±3 mph from 10 to 30 mph, ±4 mph from 30 to 50 mph, ±5 mph from 50 to 99 mph). The barometric pressure comes from the indoor display, at ±0.15 inHg. AcuRite adds that the exact figures for your model are in its manual. The 00589 product page lists ±2°F for temperature; its manual gives ranges but no accuracy bands. Good to know: the 00589 display lets you calibrate outdoor and indoor temperature and humidity, the wind speed interval and the barometric pressure yourself.

Sources: AcuRite product pages for the Notos stations, AcuRite support articles on the Notos sensor installation, wind speed and accuracy standards, checked October 19, 2026.

Our Amazon button goes to the 00589 with the color "Light Theme" display. AcuRite does not list an atomic clock for it. Want the version with the atomic (self-setting) clock? Our second button goes to the 00634, listed on Amazon as the 00634A3; AcuRite's support page for the 00634 covers both the A3 and the A4.

What the Notos Measures (and What It Leaves Out)

Think of the Notos as the "how does it feel out there" station. The three outdoor readings are:

The indoor display adds its own readings. On the Notos displays AcuRite lists indoor temperature and humidity, barometric pressure (with a trend arrow, or a 12-hour pressure history on the 00589), heat index, wind chill and dew point. Heat index and wind chill are "feels like" numbers: how hot or cold it feels once humidity or wind is taken into account.

What it does not do: measure rain or wind direction. If you want to know that 0.4 inch fell last night, or that the wind turned northwest before the storm, the Iris is the AcuRite step up. Our Notos vs Iris comparison goes through the differences.

Notos Versions: Which Display Do You Get?

"Notos" is the name of the sensor family, and AcuRite pairs it with several displays. That is where buyers get confused, because the display decides the clock, the colors and the extras. These are the Notos stations AcuRite lists on its own website:

Source: AcuRite product pages and AcuRite support articles for the 00589 and 00634, checked October 19, 2026. Features can change between production runs, so check the model number on the box or the listing before you buy.

Our take: if you want a self-setting clock, look for the atomic versions (00634A4, 00638A4). If you prefer a lit color screen, the color versions (00589, 01604A2, 00622MCB) are the ones to compare. The outdoor sensor belongs to the same Notos 3-in-1 product family, but the display versions differ in clock type, history features, power options and mounting. Check the exact model number before you choose a replacement part.

The Self-Calibrating Forecast: Give It Two Weeks

Every Notos display shows a forecast icon. AcuRite calls it Self-Calibrating Forecasting: the display uses the pressure readings from its built-in barometer, together with the data from your outdoor sensor, to make a forecast for your own spot. AcuRite lists the forecast as 12 to 24 hours ahead (the 00589 manual says the same; its product page says 12 hours).

The catch is that it has to learn first. AcuRite explains how this "Learning Mode" works:

• The display starts from the global average air pressure (29.92 inHg).
• It then takes 4,000 readings, one every 12 minutes, to work out the pressure for your altitude.
• After 14 days the Learning Mode icon disappears and the pressure is "reasonably accurate".
• The calculation keeps running until all 4,000 readings are in, which takes about 33 days.
• The 00589 manual adds: removing the batteries or resetting the display restarts Learning Mode.

Where to Mount the Sensor (From AcuRite's Guide)

For the pole, AcuRite mentions a 2x4 or 4x4 piece of wood, a 3/4 inch schedule 40 PVC pipe, or a steel pole with an outer diameter of one inch. AcuRite also notes that the National Weather Service recommends mounting wind sensors at 33 feet with no obstructions within 100 feet. Few backyards allow that, and AcuRite says your sensor gives an accurate reading for the spot where it is mounted. So if the TV station reports 20 mph and your Notos says 9 mph, in our view the height and the trees are the first suspects, before a broken sensor.

Setup in Short

AcuRite's installation steps for the Notos sensor:

1. Press the release lever and pull off the bottom of the sensor to reach the batteries.
2. Set the A-B-C switch to the same letter as the switch on your display.
3. Insert 4 AA batteries (fresh, 1.5 volt, not mixed; lithium if it gets colder than -4°F).
4. Fix the mounting base to a post or pole, put the sensor on top and screw it in place.
5. Check that it is level.

The 00589 display runs on its AC adapter, with 6 AA batteries as optional backup. The A-B-C letters are the first thing to check if the display shows dashes after setup.

Can the Notos Go Online?

Not on its own: the Notos displays in the table above have no Wi-Fi. AcuRite does list the Notos sensor (06008RM) as compatible with the AcuRite Access, a separate hub that accepts up to 7 sensors. With it, the sensor data shows up on the My AcuRite dashboard, which AcuRite says updates every 5 minutes. If an app and remote access matter to you, a station with Wi-Fi built in is simpler, such as the Ambient Weather WS-2902C or one of the AcuRite Wi-Fi displays in our AcuRite overview. And if you only care about temperature and humidity, you do not need wind cups at all: a simple indoor/outdoor thermometer does that job.

Pros and Cons

Troubleshooting the Notos

Most problems are a lost connection between sensor and display. AcuRite lists these signs: dashes instead of an outdoor temperature, an outdoor temperature that does not change, no wind speed, -40 degrees or 1% humidity on the screen.

AcuRite's hard reset for the Notos (from AcuRite support):

1. Bring the sensor and the display together and remove the batteries from the outdoor sensor. The signal indicator on the display should drop to zero bars. (If it still shows a strong signal, your display is picking up another sensor nearby.)
2. Remove the batteries and/or the power adapter from the display.
3. Set the A-B-C switch on both units to a new, matching letter. If your display has a reset button, press and hold it for 20 seconds now.
4. Put the batteries back in the outdoor sensor.
5. Put the batteries and/or power cord back in the display. If your display has a reset button, immediately press and hold it again for 20 seconds.
6. Leave both units within a couple of feet of each other for about 5 minutes, or until you see a solid sensor signal.

On the 00589: its manual uses a simpler sync: bring both units indoors, remove at least one battery from each, make sure the A-B-C letters match, put the battery back in the sensor first and then in the display, and leave them a couple of feet apart for about 20 minutes. Careful with its CLEAR RECORD/RESET button: pressing and holding it resets the display to factory defaults, so you have to set the time and date again and Learning Mode starts over. Our AcuRite reset guide covers the other AcuRite models.

Who Should Buy the AcuRite Notos?

Should You Buy the AcuRite Notos?

In our view, yes, if your wish list is short: outdoor temperature, humidity and wind speed on an easy-to-read screen, with a forecast that learns your spot. It does fewer things than a 5-in-1, and that is the point. Choose the display version first (clock, color, wall or tabletop), mount the sensor high and in the open, and give the forecast its two weeks.

Notos or Iris? The Iris adds two things: rainfall and wind direction. If you will want a rain total after the first big storm, the Iris 5-in-1 is the better fit. If you mainly want temperature, humidity and wind speed, the Notos covers that with a simpler sensor. On durability: AcuRite gives a limited 1-year warranty, and both the sensor and the wind cups can be replaced separately.

Video: The Notos Up Close

This video from the YouTube channel Online Shopping Must Haves shows the Notos sensor and display. It is their video, not ours.

Frequently Asked Questions

Lena Thornton

Weather Station Analyst and CWOP Contributor. Lena has researched, reviewed and analysed weather stations and instruments for over a decade. She contributes observation data to the Citizen Weather Observer Program (CWOP).