Reliably optimize the use of cooking oil to save costs and ensure brand protection. The cooking oil tester testo 270 easily, quickly and reliably determines the cooking oil quality. The new testo 270 cooking oil tester stands out thanks to its ergonomic design, which prevents the direct exposure of the hand to the hot oil. The clear alarm via the colored backlit display makes it even easier to evaluate the cooking oil quality: Green means the TPM content is OK. Orange: TPM value is borderline. Red: Your TPM limit has been exceeded.