Sunshine Instruments
Sunshine Instruments
Coimbatore, Tamil Nadu
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Weather Station

We are a leading Manufacturer of automatic weather station and weather station from Coimbatore, India.

Automatic Weather Station

Automatic Weather Station
  • Automatic Weather Station
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Today, the measurement, processing and analysis of meteorological data requires a high degree of measurement instrument precision a. an optimal adaption of title data acquired to the task at hand. Our instruments and systems fulfill in all respects to ex tense level of accuracy. Weather data analysis without Computer aided measurement logging is unthinkable today. We develop complete for all essential or optional components as per customer's requirement. The sensors are Toed on suitable mast (2 m, 5 m, 10 m) according to requirement.

The Temperature Sensor with electronic circuitry housed in a protective enclosure. The Humidity Sensor consists an electronic circuit in the enclosure converts the capacitance ca voltage output which is linearly proportional to the ambient relative humidity. Both sensors elements kept within the radiation shield to protect the sensor from direct exposure to sunlight extreme wind, rain. dust etc.

The 3 CUP Anemometer is a general purpose wind speed measuring instrument using 3 rotating cup, The frequency generated is proportional to the wind speed. The WIND VANE is used for obtaining precise measurements of wind direction. The counter-balanced lightweight aluminum vane assembly with a precision potentiometer gives signal that is proportional to the wind direction. The SOLAR RADIATION sensor is made of Photovoltaic cell which has spectrum if short wave radiations. The Barometric Pressure sensor is made of Pietro-electric sensor with temp. compensation for accurate measurements.

The Data logger is using Advanced Micro controller system S Inbuilt Real Time Clock with battery backup The Data can be logged at specified interval set by User. (i.e. every 30 minutes). 512 KB Memory suitable for 15000 Readings suitable for approx. 10 months of data @. minutes , Analog Input channels, 5 Digital Inputs. Having Internal/external 12 V SMF Battery for Backup In case of MAINS power failure Optional Solar Panel Recharging of Battery for Remote locations. 20 x 4 Alphanumeric Display for instant Data reading U Settings. To transfer to data to a PC, RS232 port is inbuilt.

ParameterRange ResolutionAccuracy
Temperature-20°Cto 60°C0.1°C0.2°C
Relative Humidity0 to 100 %,1.00%2 %
Wind Direction0 to 359 Degree1 Degree5 Degree
Barometric Pressure
880 to 1080 mb
0.1 mb
0.5 m/c
Wind speed0 to 54 m/s0.1%s2.00%
Solar Radiation0 to 1800 W/m21 W/m21.00%
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Weather Station

Weather Station
  • Weather Station
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Technician Opening or improper handling of the units will invalidate any guarantee


  • Transmission Distance in Open Field:100 meters max
  • Temperature Range:-29.9°C to +69.9°C (Show "OFL" if outside range)   
  • Resolution: 0.1°C 99%               
  • Rain Volume Display:0 to (1 h and 24 h rainfall)and 0 to 2409.9 mm.(Total rainfall               
  • Resolution: 0.1 mm               
  • Wind Speed: O to 180 km/h or o to 50 m/s           
  • Resolution: 0.1m/s               
  • Wind Direction: Graphic Resolution 22.5 Degrees, Numerical Resolution, letter format
  • 433 MHz data transmission:Measuring interval Thermohygro sensor: 32 Sec(if wind factor> 10 m/s) or 128 sec(if wind factor<10m/s)10 minutes (if the base station fails to receive any data after 5 attempts in a row, all outdoor data reading will display, except for the rain value)
  • With wire data transmission: measuring interval thermohygro sensor: 8 Seconds   
  • minutes (the ease station rads lo receive any data after 5 Manna in a row all outdoor data readings display except for Me rain value)               

Indoor Data:

  • Pressure/Temperature: 4 times per minute
  • Indoor Temperature Range:-9.9°C to + 59.9°C (Shows "OFL" if outside range)
  • Resolution: 0.1°C
  • Measuring Range Rel. Humidity:1% to 99%
  • Resolution:1%
  • Relative humidity checking interval:3 times per minute
  • Measuring Range Air Pressure: 300hPa to 1099 hPa (Standard air pressure at altitude of 9,100 meters is around 300 hPa)
  • Resolution:0.1 hPa
  • Alarm Duration: 2 minutes (approx.)

Power Consumption:

  • Base Station Batteries:3x AA, IEC LR6, 1.5V
  • Battery life using cable connection:approximately 6 months (alkaline batteries recommended)

Dimensions (LxWxH):

  • Base Station:170x32x139 mm
  • Thermohygro sensor:71.5x73x136 mm
  • Rain sensor:140x70x137 mm
  • Wind sensor:250x277.6x77.9 mm
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Reach Us
Devang Thakkar (CEO)
Sunshine Instruments
P.B. No. 3910, No. 83, Chinny's Chamber, Dr. Nanjappa RoadNear Sony Erriscion Service Center
Coimbatore - 641018, Tamil Nadu, India

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