Milltronics SF500 Integrator: full feature, powerful integrator designed for use with solids flowmeters. Input voltage: AC Voltage 100-240V Auxiliary input/ output (required for PID control and on-line calibration): board with 2 analog inputs and 2 analog outputs Feature Software: Standard Auxiliary Memory: none Data Communications: Smartlinx Ready Enclosure: standard enclosure, no entry holes Trade approval sticker: No trade approval sticker Approvals: CE, CSA US/C, FM,RCM,EAC,KCC LVDT Conditioner Card Installed: LVDT card required for connection of WFS sensing heads without internally mounted card