The Prestone Command Test Kits offer fleets a complete fluid testing, training and a consulting program to assist with informed fleet maintenance decisions. The analysis report provides detailed information on freezing and boiling points, total dissolve solids (TDS), pH, hardness, coolant buffering capabilities and more, with detail varying by test kit. Command offers three test kits, which are for conventional low silicate heavy duty (IAT) coolants, IAT and organic acids heavy duty (NOAT, OAT, HOAT) coolants and Advanced Coolant Condition Monitoring for all coolant technologies.