DT-70 Deep Frying Oil Tester & Thermometer & Oil Quality Tester For Top Efficiency & Frying Oil Testing Kits Product sellpoints Simultaneously displays Temperature and TPM (Total Polar Materials) Accurately measures cooking oil for correct temperature setting TPM value (%) is an indicator for the age of the cooking oil - The higher the percentage TPM reading, the more aged the oil Accurately measures cooking oil for correct temperature setting Includes robust carrying case