VITO® Oil Tester with Easy to use "traffic light FT 440The VITO FT 440 Oil Tester is a professional tool designed to monitor frying oil quality with precision, helping commercial kitchens maintain food safety, reduce oil waste, and save on costs. Using a simple traffic light display, the FT 440 provides instant readings: Green: Oil is still good to use Yellow: Oil should be monitored closely Red: Oil must be changed The tester measures Total Polar Materials (TPM), the industry standard for assessing oil