Product » Data loggers & Sensors » Campbell Scientific » Sensors


Air Temperature Sensors

Campbell Scientific offers thermistors, thermocouples, and RTDs for measuring air temperature. The datalogger’s programmability allows a variety of measurement options and output in units of… Learn More

Air Temperature & Relative Humidity

Air temperature and relative humidity probes typically consist of two separate sensors packaged in the same housing. Often relative humidity is measured with a capacitive… Learn More

Barometric Pressure Sensors

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… Learn More

Basic Weather

These sensors measure wind speed and direction, precipitation, barometric pressure, temperature, and relative humidity—all in a single device that has no moving parts. Learn More

Conductivity Sensors

Conductivity sensors measure how well a solution conducts a current. The more ions that are in the solution, the higher the conductivity. Learn More

Digital Camera

If you believe a picture is worth a thousand words, our digital camera is just what you need! Designed to work in harsh environments with… Learn More

Dissolved Oxygen Sensors

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… Learn More

Distance 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… Learn More

Duff Moisture Sensors

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… Learn More

Electrical Current Sensors

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… Learn More

Electric Field Sensors

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…. Learn More


Evaporation gages determine the evaporation rate by measuring the changing water level in an evaporation pan. They consist of a float, pulley, and counterweight attached… Learn More

Freezing-Rain and Ice Detectors

Freezing rain sensors detect the presence of icing conditions so that appropriate actions can be taken to prevent damage to power and communication lines, to… Learn More

Fuel Moisture and Fuel Temperature

Campbell Scientific offers sensors that emulate and measure the moisture content and temperature of similarly-sized twigs on the forest floor. These 10-hour fuel moisture and… Learn More

GPS Global Positioning Sensors

These sensors use Global Positioning Satellites (GPS) to determine position. There are three segments in determining position: satellites, ground stations, and sensors. The sensors access… Learn More

Heat, Vapor, and CO2 Flux

By finding the covariance between the vertical wind speed fluctuations with temperature against humidity and carbon dioxide fluctuations, the sensible and latent heat flux, as… Learn More

Infrared Gas Analyzers

Campbell Scientific offers both open-path and closed-path infrared gas analyzers that measure carbon dioxide, water vapor, temperature, and pressure. These analyzers feature aerodynamic designs to… Learn More

Leaf Wetness Sensors

There are three leaf-wetness sensors classifications:

  1. Surface contact types that measure the electrical resistance of a water film on the leaf surface,
  2. Mechanical types that detect a… Learn More

ORP Sensors

Our ORP sensors measure the Oxygen-Reduction Potential of a solution. Used in tandem with a pH sensor, the ORP measurement provides insight into the level… Learn More

pH Sensors

Our pH sensors measure the hydrogen ion concentration of a solution. The greater the hydrogen ion concentration, the smaller the pH; when the pH is… Learn More

Precipitation Sensors

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…. Learn More

Present Weather

Present Weather Sensors are often a component of road, marine, and airport automated weather stations. They use a laser-based system to determine visibility, measure precipitation… Learn More

Road Weather and Surface Conditions

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… Learn More

Roadbed Water Content

Products for evaluating the volumetric and gravimetric water content of roadbed material both at the construction site and in the soil-test lab. Learn More

Snow Water Equivalency and Snow Depth

This section contains sensors that measure the amount of water contained within a snowpack or the depth of the snowpack. Learn More

Soil Heat Flux Sensors

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,… Learn More

Soil Temperature Sensors

Thermistors, thermocouples, thermocouple wire, and averaging thermocouples are standard soil temperature sensors that are available. Campbell Scientific dataloggers are capable of measuring most commercially available… Learn More

Soil Volumetric Water Content

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… Learn More

Soil Volumetric Water Content Profiles

These probes monitor soil water content profiles. They can measure soil moisture at multiple depths and are easy to install. The output type can be… Learn More

Soil Water Potential Sensors

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…. Learn More

Solar Radiation Sensors

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… Learn More

Strain Gages

Strain gages are used to quantify live loads by measuring induced strains on various types of structures and components. Learn More

Surface Temperature Sensors

We offer two different technologies to measure surface temperature. Infrared temperature sensors are a non-contact means of measuring the surface temperature of an object or… Learn More

Turbidity Sensors

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… Learn More

Water Level, Stage, & Flow Sensors

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… Learn More

Water Samplers

Campbell Scientific offers both portable and stationary automatic water samplers for storm water, waste water, or other water-quality applications. These samplers use external vacuum pumps… Learn More

Water Temperature Sensors

Our thermistors are versatile, rugged temperature sensors optimized for long-term deployment. They can monitor water temperature for depths up to 50 feet. The thermistor circuit… Learn More

Wind Speed and Wind Direction

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…. Learn More

Wireless Sensors

The CWS family of wireless sensors expands measurement possibilities by allowing sensors to be installed at a distance from the datalogger without cables. We offer… Learn More

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