Model SU-100
$159.00
Model MU-100
Ultraviolet Sensors and Ultraviolet Meters measure the total ultraviolet radiation between 250 and 400 nanometers, in μmol m-2 s-1.
Effects on Output
Cosine Response
Some of the radiation coming into an ultraviolet sensor at low angles is reflected, which causes the reading to be less than it should be. The cosine-corrected head helps to capture radiation at low angles. The cosine error for typical applications is less than 10 percent.
Temperature Response
The temperature response is about 0.1 percent per degree Celsius. This temperature error is insignificant for most applications.
Long-Term Stability
The output of all radiation sensors tends to decrease over time as the detector ages. Our measurements indicate that the average decrease of our UV sensor is about 1 percent per year. We recommend returning the UV sensor for recalibration every 2 years.
