Kestrel ® RH Calibration Kit
For use with Kestrel ® 3000 and 4000 series wind meters
Kit contains three clear sealable containers, one container each of magnesium chloride and sodium chloride solution, two wooden scrapers and an insulated carrying case. Use the large container to create a stable enviroment. The small containers hold the saturated salt solution to generate well-defined humidities. USA made.