We offer this State-Of-The-Art Technology from Hygenia which measures the effectiveness of our wash. The Hygenia monitoring system is designed to be used for multiple quality and food safety tests. The device gives a numeric measurement of organic material (ATP) on a surface, measured in relative light units (RLU). The more ATP present on a surface, the higher the RLU measurement. We test at critical tanker points to ensure your tank is clean, sanitized, and free of any microbiological matter.