Keep your Vaccines Safe along the Cold Chain Shop Now >
What's included: one 2-oz water bottle, psychrometric slide rule, tables, chart, extra lamp, extra wicking material, and carrying case.
Psychrometers measure relative humidity without agitation. To use, turn on the fan and let it run for 1 1/2 to 2 minutes. Then, subtract wet bulb reading from dry bulb reading and use the included slide rule and tables to calculate the RH. Fan is powered by three size D batteries (order separately).
Our specialists are here to help you find the best product or part available for your application. Call or Email us and we will make sure you get the right product or part for the job.