Campbell Scientific, Inc.Logan, UT
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 107

The 107 is a general purpose sensor that can be used to accurately measure the temperature of a variety of media, most commonly air, water, and soil. The 107 temperature sensor consists of a thermistor encapsulated in a cylindrical aluminum housing. The probe measures temperature from -35° to +50°C and is designed for durability and ease of installation/removal.
 
   
 108

The 108 is a general purpose temperature sensor that can be used to accurately measure the temperature of a variety of media, most commonly air, water, and soil. The 108 consists of a thermistor encapsulated in a cylindrical aluminum housing. The probe measures temperature from -5° to +95°C and is designed for durability and ease of installation/removal.
 
   
 109

The 109-L Temperature Probe is a thermistor used with our CR200-series dataloggers. The CR200-series dataloggers have a special instruction for measuring the 109 probe. The 109 is designed to measure the temperature of air, water, or soil. For air temperature measurements, the 41303-5A solar radiation shield is typically used to house the probe, while limiting solar loading on the sensor.
 
   
 105E

The 105E is a general purpose, 24-gage, shielded, type E thermocouple suitable for use in soil temperature measurement or similar applications. It replaces the 105T, which has been retired. The thermocouple junction is electrically isolated from the media being measured, thereby avoiding measurement errors due to differences in ground potential.
 
   
 IRR-P

The IRR-P is a precision infrared radiometer made by Apogee Instruments that makes continuous measurements in field conditions. The IRR-P is composed of a thermopile, which measures surface temperature, and a thermistor, which measures sensor body temperature. The two temperature probes are housed in a rugged aluminum body that contains a germanium window. Both the thermopile and the thermistor output a millivolt signal. Our dataloggers measure the millivolt signals and apply the Stefan-Boltzman equation.
 
   
 ASPTC

The ASPTC is a type E thermocouple housed in a white, elongated radiation shield. The radiation shield reduces solar loading on the thermocouple by drawing air across the measurement junction with a fan. The radiation shield also protects the thermocouple, increasing its durability.
 
   
 FW05

The FW05 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouples is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required.
 
   
 FW1

The FW1 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouple is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required.
 
   
 FW3

The FW3 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouple is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required.
 
   
 43347

The 43347 probe is typically used in air quality applications to obtain the delta temperature. Air temperature is measured at 2- and 10-meter measurement heights to determine atmospheric stability as required by the EPA (also referred to as "delta temperature" measurement).
 
 

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