MCM Electronics

Professional Wireless Weather Station By General Tools (WS821) MCM Part #72-10698

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The WS821 is a complete wireless weather station that transmits indoor/outdoor temperature, humidity, rainfall, wind speed and direction, barometric pressure and much more from exterior sensors that can be placed up to 325 feet from the display station.

Specifications Top

  • Expandable up to 5 outdoor temperature/humidity transmitters
  • Indoor temperature and humidity with comfort level indicator of indoor climate
  • Weather forecast with symbols and trend of atmospheric pressure
  • Absolute and relative atmospheric pressure with 24 hours history
  • Bar graph indication of atmospheric pressure, temperature or humidity for the last 24 hours
  • Radio controlled clock with different alarms and snooze functions
  • Display of date and day of the week
  • Time of rising and setting of sun and moon
  • Indication of moon phase
  • Wind chill factor and dew point
  • Programmable alarms for temperature and storm conditions
  • Maximum and minimum values
  • LED backlit with light sensor (in continuous operation with power adapter)
  • Wall mountable or table standing
  • CE and RoHS approved

  • Display Station
  • Power Adapter 7.5V AC/DC
  • Temperature-Humidity Sensor
  • Wind Sensor with mounting materials
  • Rain Sensor with mounting materials
  • Users manual

Radio Frequency: 433 MHz
Transmission Range: up to 328 ft.
Barometric Pressure Measuring Range: 14.75 to 32.44 inHg(500 to 1100Hpa); (374.5 to 823.8 mmHg)
Resolution: 0.003 inHg(0.1 Hpa, 0.08 mmHg)
Accuracy: +/-0.015 inHg (5 Hpa; 0.38 mmHg)
Sampling interval: 20 minutes
Altitude Compensation Range: -657 to 16404 ft. (-200 to 5000m)
Temperature Range (Main unit): 14.2° to 140°F (-9.9° to 60°C)
Resolution: 0.2°F (0.1°C)
Accuracy: +/-2°F (1°C)
Sampling Interval: 10 seconds
Temperature Range (Remote unit): -40° to 176°F (-40° to 80°C)
Resolution: 0.2°F (0.1°C)
Accuracy: +/-2°F (1°C)
Transmitting Interval: around 47 seconds
Humidity Range (Main unit): 0 to 99%
Resolution: 1%
Accuracy: +/-5%
Sampling Interval: 10 seconds
Humidity Range (Remote unit): 0 to 99%
Resolution: 1%
Accuracy: +/-5%
Sampling Interval: 10 seconds
Transmitting Interval: around 47 seconds
Wind Direction Range: 0° to 360°
Resolution: 22.5°
Accuracy: +/-11.25°
Starting Threshold: 3mph (4.8 kmph)
Transmitting Interval: 33 seconds
Wind Speed Range: 0 to 199.9mph (199.9 kmph,173.7 Knots, 89.3 m/s)
Resolution: 0.1mph (0.16 kmph)
Accuracy: +/-(2mph + 5%)
Starting Threshold: 3mph (4.8 kmph)
Wind/Gust Speed Display Update Interval: 33 seconds
Wind/Gust Sampling Interval: 11 seconds
Rainfall Range (1h/24h/Yesterday): 0 to 78.73 in. (0 to 1999.9mm)
Last Week/Last Month Range: 0 to 787.3 in. (0 to 19999mm)
Resolution: 0.03 in. (0.6578mm)
Accuracy: +/-5% 0.03 in. (5% 0.6875mm)
Transmitting Interval: 183 seconds
Power Source: Total of (10) "AA" batteries (not included)
Part Numbers
MCM Part #:72-10698
General Tools Part #:WS821
Package Specifications & Dimensions
Weight:4.4375 lbs.
RoHS Comp:No
Warranty:90 days
Need to Return?
Length:17.5 in.
Width:16 in.
Height:5 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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