014A-L 3-Cup Anemometer
Reliable, Accurate Wind Speed
Compatible with all Campbell Scientific dataloggers
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The 014A, manufactured by Met One, is a three-cup anemometer that monitors wind speed for the range of 0 to 45 m/s with a threshold of 0.45 m/s. It connects directly to a Campbell Scientific datalogger, which measures the 014A's pulse signal and converts the signal to engineering units (mph, m/s, knots).

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Benefits and Features

  • Ideal for applications that do not require wind direction measurements
  • Sealed magnetic reed switch
  • Designed for continuous, long term, unattended operation in adverse conditions
  • Standard aluminum cup assembly has a distance constant of less than 4.5 m
  • For greater sensitivity, an optional LEXAN cup assembly has a distance constant of less than 1.5 m


Detailed Description

The 014A is constructed of corrosion-resistant, stainless-steel and anodized aluminum. It's three-cup anemometer assembly contains a sealed magnetic reed switch. Rotation of the cupwheel produces a pulse that is directly proportional to wind speed.


Sensor 3-cup anemometer
Measurement Description Wind speed
Range 0 to 45 m/s (0 to 100 mph)
Starting Threshold 0.45 m/s (1.0 mph)
Accuracy 0.11 m/s (0.25 mph) or 1.5%
Contact Rating 10 mA (maximum)
Operating Temperature Range -50° to +70°C
Distance Constant
  • < 4.5 m (15 ft) standard
  • < 1.5 m (5 ft) optional fast response
Cable Description Quick-connect connector with vinyl jacketed, shielded cable
Radius 10.4 cm (4.1 in.)
Height 34.8 cm (13.7 in.)
Sensor Weight 318 g (11 oz)
Cable Weight 140 g (5 oz) per 3 m (10 ft) length


Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.


Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR1000 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR3000 (retired)
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR9000 (retired)
CR9000X (retired)

Additional Compatibility Information


The 014A attaches to a Campbell Scientific crossarm using a 1049 Nu-Rail fitting or CM220 Right Angle Mounting Bracket. It also can be attached to the top of our CM110, CM115, and CM120 stainless-steel tripods using the CM216 Sensor Mounting Kit.

Data Logger Considerations

The 014A uses one pulse count channel on the data logger.


The 014A is read by the PulseCount Instruction in CRBasic and by Instruction 3 (Pulse Count) in Edlog. Wind speed measurements can be taken and processed with any of the data loggers.


Frequently Asked Questions

Number of FAQs related to 014A-L: 2

  1. The 014A-L sensors use magnets spinning over a mechanical reed switch to sense wind speed. Eventually the mechanical reed switch will fail and will need to be replaced. Replace both the bearings and the reed switch at the same time. For details on replacing bearings and the reed switch, see Appendix C of the instruction manual

  2. 03101-L Specifications
    Gust survival: 134 mph (60 m/s)
    Accuracy: ±1.1 mph (0.5 m/s)
    Threshold (w/ shielded bearings): 1.1 mph (0.5 m/s)
    Distance constant: 7.5 ft (63% recovery)

    014A-L Specifications
    Operating range: 0 to 100 mph (0 to 45 m/s)
    Accuracy: ±0.25 mph (0.11 m/s) or ±1.5%
    Threshold: 1 mph (0.45 m/s)
    Distance constant (aluminum cups): 15 ft (4.6 m)
    Distance constant (optional fast response Lexan cups): < 5 ft (1.5 m)

    Any mechanical wind speed sensor will need to have its bearings replaced on a regular basis. The 03101-L is a less expensive sensor and does not have a reed switch to replace. It’s easier to work on, and the bearings are less expensive. The turret covering the bearings is longer and protects the bearings better from dust and debris. The cups and sensor body are plastic and more fragile, so careful handling is required, but they hold up well after the sensor is installed.

    The 03101-L comes with a ¾ in. pipe. The 014A-L has a 1 in. pipe.

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