Simultaneous display of air velocity and temperature Improved response time by the addition of secondary temperature compensation circuit Easy review of time history by graphic display Memory function of maximum 999 separate measurement data Built-in RS-232 C serial interface for connection to PC. Analog output and remote control terminal also equipped Probe Compatibility feature allows you to change the probe easily > Each Unit Includes Shoulder strap AC adapter 2 pcs. analog output cable 6 pcs. C cell batteries