Thermistors, thermocouples, and RTDs
Campbell Scientific dataloggers are capable of measuring most commercially available air temperature sensors. Thermistors, thermocouples, and RTDs are available as standard sensor models. The datalogger's...
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Capacitive RH chip and PRTs
Air Temperature and Relative Humidity sensors are two separate sensors packaged in the same sensor housing. Both probes are manufactured by Vaisala. The HMP45C is recommended in humid areas or applications...
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Resonant silicon technology, silicon capacitance
Barometric pressure sensors measure fluctuations in the pressure exerted by the atmosphere. The sensors require protection from condensing humidity, precipitation, and water ingress and are typically...
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Electrical conductivity of water
Conductivity sensors measure how well a solution conducts a current. The more ions that are in the solution, the higher the conductivity.
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Galvanic cells
Dissolved oxygen is a critical parameter in determining the health of aquatic systems. In many aquacultural applications, measurement of decreased oxygen levels is used as the primary indicator to start...
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Ultrasonic ranging sensors
The most common applications are measuring snow depths and water levels. Ultrasonic sensors determine the distance to a target by sending out ultrasonic pulses and listening for the returning echoes...
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Volumetric water content of duff
Duff is an important component of forest fire fuel. An accurate knowledge of moisture content in duff material is critical to those conducting scheduled burns as well as those attempting to battle out-of-control...
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AC current, magnetic fields...
Electrical current sensors detect the flow of current along an electrical wire by measuring (or sensing) the magnetic field that is set up by the flow of electrical current. As such, the sensors are external...
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Measure electric field via a reciprocating shutter versus a field mill
Like electrical charges repel and unlike charges attract. An electric force field, referred to as an electric field, is said to exist around electrical charges. Electric field defines the force per...
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Fire weather sensors
The CS205 and CS505 are designed to make automatic continuous measurements of fuel moisture and fuel temperature. When connected to a datalogger with telecommunications capability, the user can automatically...
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WAAS-enabled, 12 parallel channel GPS receiver
Global Positioning Sensors (GPS) use GPS satellites to determine position. There are three segments in determining position: satellites, ground stations, and sensors. The sensors access the GPS satellites...
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Eddy covariance measurements
By finding the covariance between the vertical wind speed fluctuations with temperature as determined by the CSAT3 or CA27 (with 127TC) against humidity and carbon dioxide fluctuations, as measured by...
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Emulate leaf surface
Leaf wetness sensors are classified as:
- Surface contact types that measure the electrical resistance of a water film on the leaf surface,
- Mechanical types that detect a change in sensor...
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Double junction reference cell
Our pH sensors measure of the acidity or alkalinity of a solution. The greater the hydrogen ion concentration, the smaller the pH; when the pH is above 7, the solution is basic (alkaline), and when...
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Rain gauges and snowfall adapter
Campbell Scientific offers several types of precipitation measuring devices: tipping bucket rain gage, siphoning tipping bucket rain gage, heated rain gage, and a snowfall adapter.
Sensor selection...
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Weather near roadways and water, ice, and temperature on road surface
Campbell Scientific has sensors and measurement systems that provide data to monitor the atmospheric conditions near roadways as well as the conditions on the actual surface of the road.
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Thermocouples and thermopiles
Heat flux sensors measure the rate of energy transferred through a given surface. The sensors can be several thermocouples whose measurements are averaged, a thermopile, or a thermopile with a film heater....
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Thermocouples and thermistors
Thermistors, thermocouples, thermocouple wire, and averaging thermocouples are standard soil temperature sensors that are available. Campbell Scientific dataloggers are capable of measuring most commercially...
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Time-domain methods for unattended or portable measurements
Soil water content indicates how much water is present in the soil. It can be used to estimate the amount of stored water in a profile or how much irrigation is required to reach a desired amount of water....
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Soil moisture at multiple depths
EasyAG® and EnviroSMART™ probes measure soil water content profiles. The probes can measure soil moisture at multiple depths and are easy to install. The output type can be specified for...
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Heat dissipation and electrical resistance
Soil water potential sensors determine the energy status of water in soil. The energy state describes the force that holds the water in the soil. We offer sensors to measure soil water potential by...
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Pyranometers, quantum sensors, and net radiometers
Campbell Scientific offers pyranometers, net radiometers, and quantum sensors—all designed to measure various aspects of the energy imparted by the sun on the Earth's surface. A leveling fixture...
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Measure strain on structures
Quantify live loads by measuring induced strains on various types of tructures and components.
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Using infrared radiation to determine surface temperature
Infrared temperature sensors provide a non-contact means of measuring the surface temperature of an object or surface by sensing the infrared radiation given off by the subject.
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Suspended solids, turbidity
Turbidity sensors measure suspended solids in water, typically by measuring the amount of light transmitted through the water. They are used in river and stream gaging, wastewater and effluent...
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Pressure transducers, bubblers, shaft encoders, ultransonics
Water level, stage, or flow can be measured with many types of sensors: pressure transducers, bubblers, shaft encoders, or ultrasonic sensors. The location where you are measuring water level, the...
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Thermistors, thermocouples, RTDs...
The 107 and 108 Temperature Probes are versatile, rugged temperature sensors manufactured by Campbell Scientific. The probes are optimized for long-term deployment, and can be used for air temperature,...
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Wind vanes and cup, propeller, or sonic anemometers
Campbell Scientific offers a selection of quality wind sensors. Our wind vanes and anemometers are used in research, air quality, and general purpose meteorological applications. Anemometer only versions...
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