Milkin Bacteria Checker B Type Copy Used approximately 20 times Purchased July 2023 No warranty or other documents No batteries mil-kin Bacteria Self-Checker mil-kin (Miru-kin) Image of Bacteria Self-Checker mil-kin (Miru-kin) JIS B 7271 has established "Portable Microorganism Observation Device." This is a portable microorganism observation device that uses the smartphone's camera function to photograph and record bacteria and dirt at an optical magnification of 1,000x. As a tool to strengthen hygiene management in food processing factories and cooking sites, the performance characteristics, etc., have been standardized as a device that can immediately check invisible "bacteria" and "dirt" on-site. mil-kin's biology tester with a self-check function for bacteria. - Brand: mil-kin - Type: Biology Tester - Accessories: Case - Function: Self-check for bacteria Thank you for viewing.