CFT-MAX J1939 Flow & Temperature - Transmitter - CFT-MAX-T18A Data Sheet All the advantages of J1939 communication with the convenience and versatility of cartridge valve design, the CFT-MAX turbine flow meter….designed for mobile hydraulic systems — “Know the Flow & Temp!”! Real time monitoring…Predictive Maintenance…Trend Analysis…When you need Data Acquistion…Now with Temperature Output!