AcuRite Atlas Sensor:
- Temperature: +/- 1 degree Fahrenheit.
- Humidity: +/- 2% Relative Humidity.
- Rain: +/- 5%.
- Wind Speed: +/- 1 mph < 10 mph, +/- 10% > 10 mph.
- Wind Direction: +/- 3 degrees.
- UV Accuracy: +/- 1.
- Barometric Pressure: +/- .15 inhg.
AcuRite Iris™ (5-in-1), Notos™ (3-in-1), and Tower Sensors:
- Temperature: +/- 2 degrees Fahrenheit.
- Humidity:
- +/- 5% from 0% to 10% Relative Humidity.
- +/- 4% from 10% to 20% Relative Humidity.
- +/- 3% from 20% to 80% Relative Humidity.
- +/- 4% from 80% to 90% Relative Humidity.
- +/- 5% from 90% to 100% Relative Humidity.
- Rain: +/- 0.05" per inch of rainfall.
- Wind Speed:
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+/-2 mph below 10 mph.
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+/- 3 mph from 10 to 30 mph.
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+/- 4 mph from 30 to 50 mph.
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+/- 5 mph from 50 to 99 mph.
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- Barometric Pressure: +/- .15 inhg.
Pro Accuracy Units:
- Temperature: +/- 0.5 degrees Fahrenheit.
- Humidity: +/- 2% Relative Humidity.
Digital/Analog Clock:
- Time: +/- 1 second per day.