Specifications

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10 Davis Instruments
WEATHER WIZARD III & PERCEPTION II
Our Weather Wizard III and Perception II offer sophisticated, professional quality for home, business, or scientific use. Add WeatherLink for
detailed, long-term analysis using your PC, and you’ll have a powerful computer weather station at a surprisingly affordable price.
Weather Wizard III®
The most-requested features at an economical price. Basic model
includes inside and outside temperature, wind speed and direction,
and wind chill. With the complete station, you’ll also get daily and
accumulated rainfall. You’d pay $75 for the rain collector if purchased
separately. Save $25 with our Complete Weather Wizard III!
7425 Weather Wizard III $225
7425CS Complete Weather Wizard III
with rain collector $275
®
Rain Collector
Designed to meet the
guidelines of the World
Meteorological Organization,
our self-emptying rain col-
lector with tipping bucket
is exceptionally accurate.
Measures in 0.01" or 0.2 mm
increments.
7852 Rain CollectorforWizard $75
Includes40'(12m)cable.UseStandard4-ConductorExtensionCable.
Maximumcablelengthis900'(270m)fromraincollectortoconsoleincluding
junction box cable.
7876-008Cable,8'(2.4m)$10 7876-100Cable,100'(30m)$40
7876-040Cable,40'(12m)$18 7876-200Cable,200'(60m)$70



• Consolewithreversiblebaseforuseondesk,shelf,
or wall.
• AC-poweradapterwithbatterybackup(batterynot
included).

• Anemometerwith40'(12m)cableforwindspeed
and direction
• Outsidetemperaturesensorwith25'(7.6m)cable
• Quickandeasyplug-incableconnectionsusingmodu-
larRJconnectorslikethosefoundonyourtelephone.

• Raincollector

• Timein12-or24-hourformatanddate.
• U.S.andmetricunitsofmeasure.
• Highsandlows.
• Sequentialscananddisplayofreadings.
• Alarmsforselectedfunctions.
• Calibrationofsomefunctionsforincreasedaccuracyunderdifficultconditions.
• BacklightingofLCDdisplayforeasyviewing(PerceptionIIonly).

Be sure to use the appropriate extension cable listed for each component.
Seethecompletechartonpage20.AlthoughtheRJconnectormayfit,most
standard telephone extension cords are not compatible.


Perception II Weather Wizard III Complete Weather Wizard III
BarometricPressure

InsideTemperature
  
Outside Temperature
 
WindDirection
 
WindSpeed
 
WindChill
 
Rainfall
Optional

InsideHumidity

WeatherWizardIIIcalculatesanddisplayswindchillaccordingtotheoriginalNationalWeatherService
Formula.Anewformulawasadoptedin2001.Forwindchillusingthisformula,viewthedatausing
WeatherLinkorchooseVantagePro2instead.
On a budget? These stations offer professional quality at economical prices.
Perception II®
An indoor weather station requiring no installation—just plug it in
using the included AC-power adapter. Use to monitor your wine cellar,
greenhouse, or other climate-dependent area. Measures temperature,
humidity, and barometric pressure. So accurate, it’s even used by auto-
mobile racers to tune their carburetors for current air density condi-
tions. Backlit display for easy viewing.
7400 Perception II $180
7425CS Complete Weather Wizard III
Radiation Shield
The most effective passive
shelter available. Protects
temperature sensor from
solar radiation and other
sources of radiated and
reflected heat. Multi-plate
construction for maxi-
mum airflow. Assembly required.
7714 Radiation Shield $75
ForWeatherWizardIIIorforWirelessTemperatureStationor
Leaf&SoilMoisture/TemperatureStation