Long Range Sensor Array
List Price: $895.00
Our Price: $805.95
In Stock - Will Ship 04/27/2015
If Ordered By 3:00 PM ET
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Like the RainWise model MK-III-RTN, the MK-III-RTN-LR sensor array combines all outside sensor components into a single compact unit that's easy to install. This model includes all of the sensor components found on the MK-III-RTI-LR, except for the rain gauge. If rainfall measurements are not of interest to you, and your application requires a long distance between sensors and receivers, the MK-III-RTN-LR is a perfect solution. With a transmission range of over one mile line of sight, this sensor array is a great choice for applications where remote conditions must be monitored from outside of the 400 foot range of standard models.

The wireless, rugged outdoor sensor array runs completely on solar power. The MK-III solar charged battery supply is guaranteed to provide continuous operation below 60 degrees latitude and will operate for at least 60 days without sun.

Unless you're purchasing the unit as a replacement, the MK-III-RTN-LR sensor array requires a RainWise Long Range Display and/or the optional Computer/Network Interface. The sensor array can broadcast weather data to multiple displays, computers or network interfaces. The sensor array transmits a packet of data every two seconds.

Note: We do carry magnetic compasses to help you orient your anemometer to true north. Those can be located under the "Accessories" tab shown above. For more information on set up, please visit the anemometer page on our WeatherShack education center.


  • Outdoor temperature (ºF or ºC)
  • Indoor temperature (ºF or ºC) (w/ Optional Weather Oracle Multi Display only)
  • Outdoor humidity (%RH)
  • Outdoor wind chill temperature (ºF or ºC)
  • Outdoor dew point temperature (ºF or ºC)
  • Outdoor heat index temperature (ºF or ºC) (w/ Optional Weather Oracle Multi Display only or Computer/Network Interface)
  • Barometric pressure
  • Wind speed (mph, km/h, m/s, or knots)
  • Wind direction
  • Includes anemometer, outdoor thermo-hygrometer
  • Outdoor Temperature range: –66 to 166°F (-54 to 74°C)
  • Outdoor Temperature accuracy: ±0.5°F (0.25°C)
  • Indoor temperature range: 32 to 122F (0 to 50C) (w/ Optional Weather Oracle Multi Display only)
  • Indoor temperature accuracy: 1F (0.5C)
  • Temperature resolution: 1.0°F (1.0°C)
  • Humidity range: 0% to 100%
  • Humidity resolution: 1%
  • Humidity accuracy: ±2% at 25°C (temperature compensated from -40 to 85°C)
  • Dew point range: –40 to 140°F
  • Dew point accuracy: ±2°F (1°C)
  • Dew point resolution: 1.0°F (1.0°C)
  • Barometric pressure range: 16.3 to 32 inHg (551 to 1084 mb/hPa) absolute reading
  • Air pressure resolution: 0.03 inHg (1 mb)
  • Air pressure accuracy: 0.05 inHg (1.69 mb/hPa at 25C)
  • Heat index range: to 160°F (71°C) (w/ Optional Weather Oracle Multi Display only or Computer/Network Interface)
  • Heat index accuracy: ±2°F (1°C)
  • Heat index resolution: 1.0°F (1.0°C)
  • Wind chill range: –58 to 158°F (-50 to 70°C)
  • Wind chill resolution: 1.0°F (1.0°C)
  • Wind speed range: 0 to 150 mph (0 to 67 m/s, 0 to 240 km/h, 0 to 130 knots)
  • Wind speed resolution: 1.0 unit
  • Wind speed accuracy: ±2% of full scale
  • Wind direction range: 1° to 360° (Degrees)
  • Wind direction graphical resolution: 22.5°
  • Transmission interval: every 2 seconds
  • Transmission frequency band: 2.4 GHz
  • Transmission range: over 1 mile line of sight (obstruction between the sensor transmitter and receiver may affect overall range)


  • MK-III sensor array: 16.5" dia. x 33 " tall
    (419mm dia. x 839mm tall)
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