0-150VAC. For other input ranges, select ZR3 or ZR6 under Special Options tab. Alternative to Din Rail Mount TransmitterTL-ACV-RMS-PS1-IA06-OIV Texmate Meter Base DL-40-DR-PS1-IA06-AIV-OA3 (SA-DL/OM-CB, OP-MTL96X48, OP-MTLCLIP)