Capacitive RH chip and PRTs
Campbell
Scientific data loggers are capable of measuring most commercially available
air temperature sensors. Thermistors, thermocouples, and RTDs are available as
standard...
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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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Ultrasonic sensors
—The SR50 Sonic Ranging Sensor measures the distance from the sensor to a target. The most common applications are measuring snow depths and water levels. The ultrasonic sensor is based on a 50...
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Fire weather sensors, Duff Moisture Meter
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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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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Rain gauges
Campbell Scientific offers a range of tipping bucket rain gauge options which are ideal for measuring rainfall and precipitation in remote and
unattended locations. Rain funnels into the tipping...
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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 data loggers 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...
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Gypsum blocks and other electrical resistance measurements
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?two...
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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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Dissovled Oxygen, Conductivity, ph/ORP, Turbidity
Conductivity sensors measure how well a solution conducts a current.
The more ions that are in the solution, the higher the conductivity.
Dissolved oxygen is a critical parameter...
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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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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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About Sensors
Our sensors consist of models that are generally designed for long-term installation under adverse environmental conditions. Most of the sensors listed on our web site measure environmental and water resources parameters, but our data loggers are not limited to measuring environmental sensors. Sensors used in industrial applications such as strain gages, accelerometers, hydraulic pressure transducers, etc. are also available, either through our applications engineers or from a third party.
Our data loggers have many channel types and programmable inputs, enabling them to measure most commercially available sensors. Sensors that output voltage, pulse, SDI-12, RS-232, or 4-20 mA signals can be read using the data logger's analog (single-ended and differential), pulse counter, SDI-12, RS-232, continuous analog output, digital I/O, anti-aliasing filter, and switched excitation channels.