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AcuRite 01021M

AcuRite 01021M

Wireless Digital Rain Gauge w/ Lightning Detection
Model: 01021M
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List Price: $115.99
Our Price: $84.95
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The AcuRite 01021M Wireless Color Digital Rain Gauge features a self-emptying rain collector that wirelessly transmits rainfall, outdoor temperature, outdoor humidity, barometric pressure and lightning detection data to the indoor color display. The AcuRite 01021M Wireless Color Digital Rain Gauge displays temperature in either Fahrenheit or Celsius formats, the time with the month and day. Know how much water you are using to water your lawn, or find out what the latest storm brought to your home.

The lightning detector provides outdoor temperature and humidity, along with visual and audible alert warnings for cloud-to-ground, cloud-to-cloud and intra-cloud lightning strikes within a 25 mile range. The lightning detector features enhanced interference rejection capabilities to prevent false lightning detection, along with a history of strikes detected today, current week and month. Perfect for gardeners and parents needing to know when to move the kids indoors.

AcuRite Wireless Color Rain Gauge w/ Temperature, Humidity & Lightning Detection
  • Manual set time and date
  • Hour and minute display
  • Month/day display
  • Outdoor temperature with trend indicator (ºF or ºC)
  • Outdoor humidity with trend indicator (%RH)
  • 12 to 24-hour weather forecast
  • Rainfall amount (in or mm)
  • Possible flood indicator
  • Self-emptying (tipping bucket) rain gauge
  • Lightning strike indicator
  • Lightning strike counter
  • Lightning strike audible and visual alerts
  • Estimated strike distance (mi or km)
  • Barometric pressure with trend indicator
  • Heat index and dew point
  • Daily and all-time MIN/MAX records
  • Programmable alarms for temperature, humidity, lightning and rainfall
  • Illuminated color display with three different backlight settings (High/Medium/Low). When display is powered with the included AC adapter, the backlight can be configured to remain on continuously. When powered by batteries, the backlight will remain on momentarily for 10 seconds when the BACKLIGHT button is pressed
  • Sensor signal strength icon
  • Low battery indicator
  • Tabletop or wall-mount design
  • One year manufacturer warranty
  • Outdoor temperature range: -40F to 158F; -40C to 70C
  • Outdoor humidity range: 1% to 99%
  • Rainfall range: 0.01 in. (0.25 mm) and up
  • Lightning detection range: 1 to 25 miles (1.6 to 40 km)
  • Temperature/humidity data update intervals: 36 seconds
  • Rainfall data update intervals: 60 seconds
  • Lightning sensor data update intervals: 24 seconds during normal conditions; 8 seconds once lightning detected
  • Power requirements (display): 5.0V AC adapter (included) or 3 AA alkaline batteries
  • Power requirements (rain gauge): 2 AA alkaline batteries*
  • Power requirements (lightning detector): 4 AA alkaline batteries*
  • Transmission frequency: 433 MHz
  • Transmission range (temperature/humidity/lightning sensor): Up to 330 feet open air
  • Transmission range (rain gauge): Up to 100 feet open air

* Lithium batteries recommended for temperatures below -4F/-20C


  • Display: 8" H x 5.4" W x 1.9" D
  • Rain gauge: 6.00" H x 4.9" W x 2.3" D
  • Lightning sensor: 5.875" H x 2.625" W x 0.9" D


Average Customer Rating 4.5 4.5 stars (based on 11 reviews)

Displaying reviews 1-10 of 11
By michael
From palm city, FL
5 stars get station
love it works get
By Mark
From Minocqua, WI
5 stars Performs excellent. Exceeded expectations. Easy to set up.
The weather station is working flawlessly. It has been fun and interesting to follow the weather from data collected at my house location. The monitor unit is easy to read. And set up was a breeze. Good product.
By Rick
From Chapin, SC
4 stars Nice
Nice devise. Just a little confusing while initial calibration, but all ended well Enjoy the screen view.
By Lawrence
From Mobile, AL
4 stars Great value
Easy to read. Accurate. Too many keystrokes to get histories, but a minor issue.
By Robert
From Rome, NY
4 stars Comment
I bought the unit for my son who was not happy with the first selection as I didn't hook up with his cell as advertised(he is computer savvy) so he traded it back in for the model you are showing here. You might contact him at [email protected]
By Jim
From Sandy Springs, GA
4 stars AcuRite Wireless Color Rain Gauge
Products works as promised. No inside Temperature or Humidity. Rain Gauge only day to day. No year to date reading
By harry
From greene me, ME
5 stars rain gauge
very nice product work very well
By Terry
From Illinois, IL
5 stars It works
This review is based on only four days of operation. My wife is thrilled with it so far. Set up was easy, pretty much just install the batteries and mount the sensors. The lightning sensor recorded distant strikes that we didn't see. I guess that would be nice if you need that information. The temperature sensor benefits from a shaded location as stated in the instructions. The display is much more usable when it's powered from an outlet instead of the batteries.
By Bob
From Leesburg, FL
5 stars AcuRite WirelessRain/Temperature/Lightning Detection
Great visual display. Easy to set-up with detailed instructions.
By Emory
From Elk City, OK
4 stars As advertised
This rain gauge works great. Easy installation. Easy to program. The color screen is pleasant and easy to read. I watched it constantly during its first rain and it matched my other gauge but more precise. Now I only have one and this is it. The signal strength is much better than expected. I thought I would be pushing it's limit with the necessary placement of the collection unit but not so. Very pleased and would recommend to anyone. Only disappointment is the need to bring inside during freezing weather.


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