RainWise MK-III-RTI -LR Long Range Wireless Weather Transmitter

: $995.00
: $895.00
You save $100.00!

Availability:: Usually Ships in 1 to 2 Days
Product Code: MK-III-RTI-LR


The RainWise MK-III-RTI-LR wireless long range transmitter for weather stations combines all outside sensor components into a single compact unit that's easy to install. With a transmission range of over one mile line of sight, this weather station is a great choice for applications where remote conditions must be monitored from outside of the 400 foot range of standard models.

The RainWise Weather Oracle multi-display (sold separately) permits viewing all weather variables simultaneously or you can customize the display, showing only those parameters you select. You have choices on brightness, as well as to wall mount or place free-standing on a table or shelf. This unit comes in four different frame types: black, cherry, or mahogany wood, and black metal.

RainWise MK-III-RTI-LR Features:

  • Manually set time/date
  • Hour/minute, or calendar display
  • Indoor temperature with MIN/MAX records (F or C)
  • Outdoor temperature with MIN/MAX records (F or C)
  • Outdoor humidity with MIN/MAX records (%RH)
  • Outdoor wind chill temperature (F or C)
  • Outdoor dew point temperature (F or C)
  • Outdoor heat index temperature (F or C)
  • Rainfall (Current) with MIN/MAX records (inch/mm)
  • Rainfall (Total) with MIN/MAX records (inch/mm)
  • Self-emptying rain gauge with eight inch diameter rain collector
  • Current absolute barometric pressure with MIN/MAX records (inHg or mb/hPa). Digital offset for site altitude.
  • Barometric pressure trend indicator (rising or falling)
  • Wind speed with MIN/MAX records (mph, km/h, m/s, or knots)
  • Wind direction display with 16 point wind rose, current direction by bright LED and direction variation by dimmer LEDs
  • All MIN/MAX records can be reset
  • 12 or 24 hour time mode
  • Weather Oracle display unit powered by AC adapter and battery backup (sold separtely)
  • Includes rain gauge, anemometer, outdoor thermo-hygrometer, and indoor barometer and thermometer-hygrometer (in Weather Oracle console)
  • Wall mount or free-standing (push in leg bracket)

The RainWise MK-III-RTI-LR Wireless Long Range Transmitter Specifications:

  • Indoor Temperature range: 32 to 122F (0 to 50C)
  • Indoor Temperature accuracy: 1F (0.5C)
  • Outdoor Temperature range: 66 to 166F (-54 to 74C)
  • Outdoor Temperature accuracy: 0.5F (0.25C)
  • Temperature resolution: 1.0F (1.0C)
  • Humidity range: 0% to 100%
  • Humidity resolution: 1%
  • Humidity accuracy: 2% at 25C (temperature compensated from -40 to 85C)
  • Dew point range: 40 to 140F
  • Dew point accuracy: 2F (1C)
  • Dew point resolution: 1.0F (1.0C)
  • Wind chill range: 58 to 158F (-50 to 70C)
  • Wind chill resolution: 1.0F (1.0C)
  • Heat index range: to 160F (71C)
  • Heat index accuracy: 2F (1C)
  • Heat index resolution: 1.0F (1.0C)
  • 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). Temperature compensated from -40 to 85 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
  • Rainfall range: unlimited
  • Rainfall resolution: 0.01 in (0.25 mm)
  • Rainfall measurement: 0.01 inches per tip of bucket
  • Rainfall accuracy: 2% at 1.0 inches/hr
  • Power requirements (base): AC Adapter with 5 AAA Alkaline batteries for backup
  • Transmission interval: every 2 seconds
  • Transmission frequency band: 2.4 GHz
  • Transmission range: over 1 mile line of sight (obstruction between the sensor long range transmitter and console receiver may affect overall range)


  • RainWise MK-III-RTI-LR sensor assembly: 16.5" dia. x 33 " tall
    (419mm dia. x 839mm tall)
  • Weather Oracle receiver (wood):
    6.85" x 13.0" (174mm x 330mm)
  • Weather Oracle receiver (metal):
    5.75" x 12.0" (146mm x 305mm)

Long Range Multi-display for the MK-III Weather Station Cherry 3' Tripod for MRK III Weather Transmitter Multi-display for the Long Range MK-III Weather Station Mahogany CC-3000 RainWise Enhanced Computer Interface and Weather Data Logger for MRK-III
: $445.00

: $57.99

: $445.00

: $355.00

Mono Mount for Mrk III IP-100-LR Network Interface for MKlll Long Range Weather Station Multi-display for the Long Range MK-III Weather Station Black
: $59.00

: $399.00

: $445.00


Average Customer Review: 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
the best there is, in my experience October 22, 2016
Reviewer: Kai D from Gordonsville, VA United States  
The Rainwise Mark III LR is excellent in so many ways. It is accurate, tracks current and accumulated data (for whatever period you choose), includes all the elements of weather I want, is easy to re-set. The whole system is quick and easy to set up, the red station is the easiest to read from a distance, the panel is attractive cherry. I have the sending unit on a remote building, and the wireless link updates continually and quickly. In short, perfect in my view.

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