Oregon Scientific WM918 Professional Home Weather Station

Weather Monitoring Station Comes Fully Equipped 
With All Outdoor Sensors And Wiring


Simple wiring makes this weather station easy to set up. Then check the desktop control panel for all remote readings--or add optional PC link and software and you can monitor environmental data from your personal computer! Includes Oregon Scientifics innovative weather forecasting system that predicts the weather for the next 12-24 hours with easy to understand graphical icons.

Also includes a digital clock with calendar and daily alarm


Benefits and Features

Benefits:

  • Complete weather station has everything necessary for complete environmental monitoring 

  • Simple wiring for easy set up 

  • Check all meteorological data at the desktop LCD console, or from your personal computer (additional purchase of PC link and software required for PC use) 

  • Self-emptying rain gauge means you never have to trudge outdoors to empty the rain collector 

Features:

  • Ideal for weather watchers, gardeners, and outdoor enthusiasts 

  • Monitors over 20 weather and environmental conditions 

  • Shows local weather forecasts for the next 12-24 hours 

  • Displays graphical forecast icons 

  • Temperature/humidity, wind and rainfall sensors included 

  • Uses eight AAA batteries (not included) and AC power adapter (included)  

  • Oregon Scientific offers TWO optional software packages that allow you to capture weather data for analysis and display on your personal computer. 

 

 

Specifications: Metric English
Unit Dimensions 178 x 108 x 44 mm 7" x 4.25" x 1.75"
Weights:
  Display Unit (without batteries) 300 grams 10.6 ounces
  8 way connection cable 100 grams 3.5 ounces
  Connection box 40 grams 1.4 ounces
  Rain gauge (w/cable and screens) 290 grams 10.2 ounces
  Anemometer (w/cable, u-bolts, nuts) 550 grams 19.4 ounces
  Thermo-Hygro Sensor (w/cable)  300 grams 10.6 ounces
TEMPERATURE
Measuring Range 
Indoor  0°C to 50°C 32°F to 122°F
Outdoor  -40°C to 60°C -40°F to +140°F
Indoor Measurement Accuracy:
   Range: 32°F to 104°F (0°C to 40°C) 1°C 2°F
   Range: 104°F to 122° F (40°C to 50°C) 2°C 4°F
Outdoor Measurement Accuracy:
  Range: -40°F to 1+32°F (-40°C to 0°C) 2°C 4°F
  Range: 32°F to 104° F (0°C to 40°C) 1°C 2°F
  Range: 104°F to 122° F (40°C to 50°C) 2°C 4°F
  Range: 122°F to 140° F (50°C to 60°C) 3°C 6°F
Resolution (Indoor and Outdoor) 0.1°C 0.2°F
Sampling Cycle (Indoor and Outdoor) 10 seconds  10 seconds 
RELATIVE HUMIDITY
Measuring Range  10 to 97%RH  10 to 97%RH 
Accuracy: (at temperature range 32°F to 104°F (0°C to 40°C))
  Indoor Range:25 to 90% RH 
25 to 40% RH
40 to 80% RH
80 to 90% RH
7% RH
5% RH
7% RH
7% RH
5% RH
7% RH
  Outdoor Range:25 to 90% RH
25 to 40% RH
40 to 80% RH
80 to 90% RH
8% RH
6% RH
8% RH
8% RH
6% RH
8% RH
Resolution (Indoor and Outdoor)  1%RH  1%RH 
Sampling Cycle (Indoor and Outdoor) 10 Seconds  10 Seconds 
DEW POINT TEMPERATURE
Measuring Range 
Indoor  0°C to 47°C F32° to 117°F
Outdoor  0°C to 56°C 32°F to +133°F
Resolution (Indoor and Outdoor) 1°C 2°F
BAROMETRIC PRESSURE/TREND
Measuring Range 795 to 1050 mb 23.48 to 31.01 inHg
Accuracy:
(at temp 32°F to 122°F (0°C to 50°C) 7 mb .21 inHg
Resolution 1 mb 0.03 inHg
WIND SPEED
Measuring Range 0 to 56 m/s 0 to 125.3 mph
Accuracy: (at temp 32°F to 122°F (0°C to 50°C)

   Range: 2 to 10 m/s

1 m/s  1 m/s 

   Range: 10 to 56 m/s

10%  10% 
Resolution (typical) 0.2 m/s 0.4 mph
Sampling Cycle: 

    Gust Wind Mode 

5 seconds

    Average Wind Mode

1 minute
WIND DIRECTION
Measuring Range  0° to 359° (Degrees) 
0° to 350° (Compass Direction)
Digital Measurement Accuracy 

    Range: 0° to 340°:

10° (degrees) 

    Range: <340°: 

20° (degrees) 

Resolution  1° (typical) 
Graphical Measurement Accuracy: 

    Range: 0° to 347°: 

8° (degrees) 

    Range: <0° or >347°: 

18° (degrees) 

Graphical Resolution:  10° (degrees) 
WIND CHILL TEMPERATURE
Measuring Range -85°C to +60°C -121°C to +140°F
Accuracy: (At temp -20C to 60C w/wind speed 2 to 56 m/s) 8°C 16°F
Resolution  1°C 2°F
RAINFALL
Daily and Cumulative Measuring Range 0 to 9999mm 0 to 393.7 in
Rainfall Rate Measuring Range 0 to 998mm/hr 0 to 39in/hr
Daily Rainfall Accuracy (at 33.8°F to 140°F) 
    Range: <.6 in (15mm)  1 mm 1 digit .04 in 1 digit
    Range: .6 to 394 in (15 to
    9999mm) 
5% 1 digit 5% 1 digit
Cumulative Rainfall Accuracy (at 33.8°F to 140°F) 
    Range: <.8 in (20mm)  1 mm 1 digit .04 in 1 digit
    Range: .8 to 394 in (20 to
    9999mm) 
5% 1 digit 5% 1 digit
Rainfall Rate Accuracy (at 33.8°F to 140°F) 
    Range: <.6 in/hr (20mm/hr)  1 mm 1 digit .04 in 1 digit
    Range: .6 to 39.32 in/hr (15 to
    998mm/hr) 
7% 1 digit 7% 1 digit
Daily and Cumulative Resolution 1 mm 04 in
Rainfall Rate Resolution 1 mm/hr 04 in/hr
Daily Rain Sampling Cycle
Rainfall Rate Sampling Cycle:  Varies based on rainfall frequency
Cumulative Rain Sampling Cycle: Varies based on rainfall frequency
GENERAL
Display:  Liquid Crystal (LCD) 
Clock  Time and date display  
12/24 hour display
(selectable) 
Clock Accuracy:  0.5 Seconds/Day