Analog Voltage Weather Instruments
Last Updated: April 1, 2025
Description
Analog Voltage Weather Instruments are devices used to measure various atmospheric conditions by converting physical phenomena into analog voltage signals. These instruments typically include sensors for temperature, humidity, and atmospheric pressure, which provide continuous voltage outputs corresponding to the measured environmental parameters.
Working Principle
Analog Voltage Weather Instruments operate by utilizing sensors that respond to changes in environmental conditions. For example, temperature sensors like thermocouples generate a voltage that varies linearly with temperature changes due to the Seebeck effect, where dissimilar metals in contact produce a voltage difference. Similarly, barometric pressure sensors may use a mercury-filled tube where atmospheric pressure changes cause the mercury level to rise or fall, altering the voltage output. These analog signals are then processed to provide real-time data on weather conditions, making them useful for monitoring and predicting weather patterns.
Applications
Analog Voltage Weather Instruments are commonly used in both professional meteorological stations and personal weather setups. Specific applications include:
- Meteorological Stations: Used for continuous monitoring of weather conditions to provide data for weather forecasting and climate studies.
- Agricultural Monitoring: Helps farmers track weather conditions to optimize planting and harvesting schedules.
- Aviation: Provides critical weather data for flight planning and safety.
- Environmental Research: Used in studies to understand climate change and its impact on various ecosystems.
Limitations
Analog Voltage Weather Instruments have several limitations, including:
- Accuracy: They are generally less accurate than digital instruments, which can affect the precision of weather data.
- Environmental Sensitivity: Analog readings can be affected by external factors such as magnetic fields and unlevel surfaces, leading to potential errors.
- Maintenance: These instruments may require regular calibration and maintenance to ensure accurate readings.
Considerations
When considering Analog Voltage Weather Instruments, several factors should be taken into account:
- Initial Costs: Typically lower than digital instruments, making them an attractive option for budget-conscious users.
- Operating Expense: Generally low, as they do not require a power supply beyond the test current source.
- Durability: Robust construction due to simple mechanical parts, but may be prone to wear and tear over time.
- Accuracy: While they provide a good indication of trends, they may not offer the precision required for certain applications.
- Replacement and Maintenance Costs: Regular maintenance is necessary to ensure accuracy, which can add to the overall cost of ownership.
from Kipp & Zonen, Inc.
ISO 9060 Secondary Standard pyranometer. No change of desiccant for 10 years. Smart, more than just digital. RS-485 Modbus ® communication. 5 year warranty (*). The SMP10 is a secondary standard pyranometer that combines the sensor technology from the CMP 11, the Smart interface from the SMP11... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 285 to 2800
from Edgetech Instruments Inc.
The Vigilant Aircraft Hygrometer is a rugged, shock mounted instrument used for accurate measurement of dew/frost point in flight or in installations with existing flow, such as wind tunnels. The Vigilant features a miniature, remote or mounted, primary method chilled mirror dew/frost point sensor... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures Dew Point
- Device Classification: Sensor System
- Dew Point Range Measured: -58 to 194
from Comptus, Inc.
The A70H-SRL Solar Radiation Sensor utilizes a silicone cell. It is designed for measuring radiation in the 300-3000nm range. [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Solar Detector Instrument Type: Quantum Sensor
from Campbell Scientific, Inc.
The CSAT3 is a three-dimensional sonic anemometer. It measures wind speed and the speed of sound on three nonorthogonal axes. From these measurements, orthogonal wind speed and sonic temperature can be computed. The CSAT is used in eddy covariance applications to measure the turbulent fluctuations... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Senses Wind Speed
- Device Classification: Sensor Only
- Height: 16.69
from RainWise, Inc.
These professional, high quality wind sensors go above and beyond what you would expect from an average wind sensor. These sensors measure accurately and present reliable data in demanding wind conditions without recurring maintenance. Housed in special treated aluminum, having an ingress protection... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Senses Wind Speed; Senses Wind Direction
- Device Classification: Sensor Only
- Velocity Range Measured: 0.6711 to 168
from Rotronic Instrument Corp.
The MP101A is a combined humidity and temperature probe designed primarily for meteorological and general outdoor applications. Operation from DC voltage and low power consumption make the MP101A particularly suitable for operation at remote locations. Energizing of the probe is required for only... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -40 to 140
from E+E Elektronik
The EE08 is optimized for accurate humidity and temperature measurement over a wide working range. The probe has both analogue and digital outputs and is available with either cable or M12 connector. It is possible to choose between active and passive temperature measurement. The probe is easily... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -40 to 176
from LufftUSA
Description: From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications. Supplementary description: WS510-UMB Compact Weather Station for measuring of air temperature, relative humidity, solar radiation, air pressure, wind... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Senses Wind Speed; Senses Wind Direction; Measures solar Radiation; Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor System
- Velocity Range Measured: 0.0 to 168
from CARLO GAVAZZI Automation Components
Air velocity transmitter coupled with temperature monitoring. Comes with optional display to show air velocity and temperature as well as option to choose RS485 modbus. Available in 0-10 V output or 4-20 mA output. Remote or duct mounting. 0-10 V or 4-20 mA output. 20 m/s measuring range. With or... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Senses Wind Speed; Measures Temperature
- Device Classification: Sensor Only
- Velocity Range Measured: 0.4474 to 44.74
from OTT Hydromet
The CGR3 is a pyrgeometer, designed for meteorological measurements of downward atmospheric long wave radiation. The CGR3 provides a voltage that is proportional to the net radiation in the far infrared (FIR). By calculation, downward atmospheric long wave radiation is derived. For this reason CGR3... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Interface Options: Digital Serial
from Vaisala
For Industrial Use. Vaisala BAROCAP ® Barometer PTB110 is designed both for accurate barometric pressure measurements at a room temperature and for general environmental pressure monitoring over a wide temperature range. The compact PTB110 is suitable for applications, such as environmental... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Barometric Pressure
- Device Classification: Sensor Only
- Pressure Range Measured: 500 to 1060
from Solar Light Company, Inc.
The 3D Version 2 meter is capable of measuring the UV-A and UV-B spectrum. The meter shows the intensity of UV-B (also called SUV - Sunburning UV) in Minimal Erythemal Doses per Hour (MED/Hr), the accepted clinical measure for sunburn potential. A UV-A detector measures light intensity in the range... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor System
- Wavelength Range Measured: 320 to 400
from Yankee Environmental Systems, Inc.
Model UVB-1 and UVA-1 Pyranometers are precision meteorological instruments for the measurement of biologically effective solar ultraviolet-B (UV-B) and UV-A radiation, respectively. The measurement technique employed in both instruments utilizes colored glass filters and a highly stable... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor System
- Wavelength Range Measured: 280 to 400
from Kipp & Zonen, Inc.
ISO 9060 Secondary Standard. RS-485 Modbus ® RTU interface. 0 to 1 Volt or 4 to 20 mA analogue output. Active temperature correction from -40 °C to +80 °C. 5 year warrany (*). The SMP11 smart pyranometer combines class leading sensor technology with industry standard digital and analogue... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 285 to 2800
from Comptus, Inc.
The Comptus A70H-A PAR sensor utilizes a silicon-photo detector for measuring solar radiation in the 400-700nm wavelength. When there is sunlight, a voltage output is generated proportional to the angle of incidence. [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 400 to 700
from Campbell Scientific, Inc.
The NR01 net radiometer is manufactured by Hukseflux for applications requiring research-grade performance. The radiometer measures the energy balance between incoming short-wave and long-wave infrared radiation versus surface-reflected short-wave and outgoing long-wave infrared radiation. It... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 305 to 2800
from RainWise, Inc.
The RainWise Pyranometer is designed for measurements in solar, agricultural, meteorological and hydrological studies. The sensor features a PIN silicon photo diode mounted in a fully cosine corrected miniature head. Product Features. The sensor output is integrated over the wavelength interval of... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 400 to 1200
from Rotronic Instrument Corp.
The HC2-SH / HC2-S3H fulfills the highest demands on measuring accuracy. It measures humidity and temperature and calculates the dew/frost point. [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -58 to 212
from LufftUSA
WS700-UMB Compact Weather Station for measuring of air temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity, air pressure, wind direction, wind Speed and radiation. Relative humidity is measured by means of a capacitive sensor element; a precision NTC... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Senses Wind Speed; Senses Wind Direction; Measures Rain/Snow Fall; Measures solar Radiation; Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor System
- Velocity Range Measured: 0.0 to 168
from OTT Hydromet
CGR4 pyrgeometer is an instrument for the highest quality scientific measurements. The specially designed meniscus dome provides a 180 ° field of view with negligible directional response error. A hard-carbon coating on the outside of the dome smoothes the spectral response and provides extra... [See More]
- Output Options: Outputs an analog voltage signal
- Interface Options: Digital Serial
- Weather Component Sensed: Measures solar Radiation
- Operating Temp: -40 to 176
from Vaisala
Vaisala's HUMICAP ® HMP155 is a plug-and-play sensor that has excellent stability and withstands well even in harsh environments. The probe provides reliable humidity and temperature measurement and it is designed specifically for demanding outdoor applications. Features • Vaisala... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -112 to 140
from Yankee Environmental Systems, Inc.
The SPUV is a precision sun photometer that measures direct solar spectral irradiance at up to ten discrete wavelengths in the UV-B and visible regions. The SPUV exceeds the WMO specifications for sun photometers and is the first commercial sun photometer to measure narrow bandwidths in the UV-B. [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor System
- Wavelength Range Measured: 300 to 940
from Kipp & Zonen, Inc.
ISO 9060 Secondary Standard. Individual temperature correction from -40 °C to +80 °C. No change of desiccant for 10 years. RS-485 Modbus ® communication. 5 year warranty (*). The SMP21 is a secondary standard pyranometer that combines the sensor technology from the CMP21, has the RS-485... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 280 to 3000
from Comptus, Inc.
The Comptus Silicon Pyranometer measures both direct and diffuse insolation. The pyranometer output responds to the cosine of the angle between the sensor and the light source. The signal from the sensor is scaled by the signal conditioner to provide the desired output. The system should only be... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Solar Detector Instrument Type: Pyranometer
from Campbell Scientific, Inc.
The SI-111 (previously known as the IRR-P) is a precision infrared radiometer made by Apogee Instruments that makes continuous measurements in field conditions. The SI-111 is composed of a thermopile, which measures surface temperature, and a thermistor, which measures sensor body temperature. The... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation; Measures Temperature
- Device Classification: Sensor Only
- Wavelength Range Measured: 8000 to 14000
from Rotronic Instrument Corp.
The HC2-S / HC2-S3 is the most versatile probe from ROTRONIC and forms the basis of the product portfolio. It measures humidy and temperature and calculates the dew/frost point. [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -58 to 212
from LufftUSA
Description: From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications. Supplementary description: WS300-UMB Smart Weather Sensor for measuring of air temperature, relative humidity and air pressure. Relative humidity is... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor Only
- Temperature Range Measured: -58 to 140
from OTT Hydromet
The CHP1 pyrheliometer is the most commonly used radiometer for the measurement of direct normal irradiance (DNI) and offers high accuracy and reliability. CHP1 fully complies with the most current ISO and WMO performance criteria for First Class Normal Incidence Pyrheliometer. Every CHP1 is... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 200 to 4000
from Vaisala
Rain intensity measurement with processing unit. Rain and snow are quickly and accurately detected with the DRD11A rain detector. It operates via droplet detection rather than by signal level threshold. A special delay circuitry allows about two-minute interval between raindrops before assuming an... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Rain/Snow Fall
- Device Classification: Sensor Only
- Rain / Snow Collector Type: Other Rain
from Kipp & Zonen, Inc.
ISO 9060 Secondary Standard. Most accurate pyranometer currently available. Lowest directional error < 5 W/m ². Individual temperature correction from -40 °C to +80 °C. No change of desiccant for 10 years. RS-485 Modbus ® communication. 5 year warranty (*). The SMP22 is a... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 190 to 3600
from Comptus, Inc.
The A70H-IL1 Pyranometer utilizes a thermoelectric sensor. The sensing elements are made with winding - plated thermopiles with multi contacts. It is designed for measuring radiation in the 300-3200nm range. [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 300 to 3200
from Campbell Scientific, Inc.
The CS300 is a silicon pyranometer manufactured by Apogee Instruments. The range of the sensor is 300 to 1000 nanometers, which encompasses most of the shortwave radiation that reaches the Earth's surface. This sensor provides solar radiation measurements for solar, agricultural, meteorological, and... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 300 to 1100
from Rotronic Instrument Corp.
Airport weather stations, meteorological towers, rooftop installations and any application with continuous data monitoring. [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures Dew Point
- Device Classification: Sensor System
- Dew Point Range Measured: -50 to 100
from LufftUSA
Description: From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications. Supplementary description: WS303-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, solar radiation, air pressure. Relative... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation; Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor Only
- Wavelength Range Measured: 300 to 2800
from OTT Hydromet
The CM4 High Temperature Pyranometer is a radiometer specially designed for measuring solar or artificial light irradiance under the most extreme temperature conditions. With an operating temperature range of -40 ºC to +150 ºC and measurement up to 4000 W/m ² it is a unique product. [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Solar Detector Instrument Type: Pyranometer
from Vaisala
WMO and ICAO compliant, robust and reliable ultrasonic anemometer. Robust and reliable ultrasonic anemometer for wind measurement for meteorology, aviation, maritime and wind energy applications. The WMT700 uses ultrasound to determine horizontal wind speed and direction. The measurement is based on... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Senses Wind Speed; Senses Wind Direction
- Device Classification: Sensor Only
- Velocity Range Measured: 0.0 to 201
from Kipp & Zonen, Inc.
0 to 1 Volt or 4 to 20 mA analogue output. No change of desiccant for 10 years. Active temperature correction from -40 °C to +80 °C. 5 year warranty (*). The SMP3 is a smart pyranometer with low maintenance and industry standard digital and analogue amplified outputs. Based on the proven CMP... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 300 to 2800
from Campbell Scientific, Inc.
The LWS, manufactured by Decagon, can detect small amounts of water or ice on the sensor surface for leaf wetness applications. Because the LWS measures the dielectric constant of the sensor's upper surface, it can detect the presence of water or ice anywhere on the sensor's surface. [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures %Water or %Moisture Content
- Device Classification: Sensor Only
- Height: 4.4
from LufftUSA
Description: Country version: EU, USA and Canada. Supplementary description: WS400-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity and air pressure. Relative humidity is measured by means of a... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Rain/Snow Fall; Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor Only
- Rain / Snow Collector Type: Other Rain
from OTT Hydromet
The CMP10 is the Spectrally Flat Class A pyranometer with the best price-quality-performance ratio on the market. Based on the established CMP 11 technology, CMP10 extends this quality to applications where maintenance is difficult and/or forms a major part of the cost of ownership. The CMP10 has an... [See More]
- Output Options: Outputs an analog voltage signal
- Solar Detector Instrument Type: Pyranometer
- Weather Component Sensed: Measures solar Radiation
- Interface Options: Digital Serial
from Vaisala
Accurate wind speed and direction measurement in a compact and economical package. The Vaisala Wind Sensor WM30 is a compact and economical wind speed and direction sensor. The rotating cup anemometer at the top of the unit provides a linear response to wind speed. The vane, which is attached to the... [See More]
- Output Options: Outputs an analog voltage signal; Frequency or Modulated Frequency Output; Switch or Relay Contact
- Weather Component Sensed: Senses Wind Speed; Senses Wind Direction
- Device Classification: Sensor Only
- Velocity Range Measured: 1.12 to 134
from Kipp & Zonen, Inc.
ISO 9060 First Class. Active temperature correction from -40 °C to +70 °C. No change of desiccant for 10 years. RS-485 Modbus ® communication. 5 year warranty (*). The SMP6 is a first class pyranometer that combines the sensor technology and housing from the CMP6. The SMP6 has both... [See More]
- Output Options: Outputs an analog voltage signal; Outputs an analog current signal (i.e., 4-20 mA)
- Weather Component Sensed: Measures solar Radiation
- Device Classification: Sensor Only
- Wavelength Range Measured: 280 to 3000
from Campbell Scientific, Inc.
The CS110 is used for lightning warning applications and in research applications for measuring the local electric field. It measures the vertical component of the atmospheric electric field at the earth's surface. The CS110 sensor is typically part of a larger electric-field system. It includes an... [See More]
- Output Options: Outputs an analog voltage signal
- Height: 17
- Device Classification: Sensor Only
- Weight: 9
from LufftUSA
Supplementary description: WS401-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, precipitation and air pressure. Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. Optionally, the... [See More]
- Output Options: Outputs an analog voltage signal
- Weather Component Sensed: Measures Rain/Snow Fall; Measures Temperature; Measures Barometric Pressure; Measures % Relative Humidity
- Device Classification: Sensor Only
- Rain / Snow Collector Type: Tip Bucket
from OTT Hydromet
The CMP11 is an ISO 9060:2018 Spectrally Flat Class A pyranometer that uses the temperature compensated detector technology originally developed for the CMP22 and is a step up in performance from the CMP6. It is particularly suitable for meteorological networks and the reduced response time of 1.66... [See More]
- Output Options: Outputs an analog voltage signal
- Solar Detector Instrument Type: Pyranometer
- Weather Component Sensed: Measures solar Radiation
- Interface Options: Digital Serial