Model Catalog: MAD510 (Lot serial: >10 lot # contact Mfg); Model Catalog: MAD500 (Lot serial: >10 lot # contact Mfg); Model Catalog: MAD600 (Lot serial: >10 lot # contact Mfg); Model Catalog: MAD700 (Lot serial: >10 lot # contact Mfg); Model Catalog: MAD720 (Lot serial: >10 lot # contact Mfg)