| 620-113 | 德国Herzog | Electric ignitor with open filament |
| 620-114 | 德国Herzog | Electric ignitor with closed filament |
| 621-008 | 德国Herzog | Pilot lamp, 230V, white colour |
| 621-062 | 德国Herzog | Low voltage halogen bulb, 12V, 5W, for bath illumination, for plug connection |
| 621-063 | 德国Herzog | Low voltage halogen bulb, 12V, 5W, for bath illumination, for solder connection on instruments sold before ｍid 2000 |
| 622-012 | 德国Herzog | Rectifier VJ 148 Var o |
| 625-068 | 德国Herzog | Transformer, Mz, 90mm, 300 VA |
| 625-084 | 德国Herzog | Transformer for electric ignition |
| 625-104 | 德国Herzog | Transformer 230/24VAC, 400VA |
| 625-111 | 德国Herzog | S-Trafo for HDA 620, 115/208/230V-24V, 1200 VA |
| 625-113 | 德国Herzog | Transformer in housing, 100-127/230V, 1380VA |
| 625-116 | 德国Herzog | Transformer in housing, 200-208/230V, 1380VA |
| 625-117 | 德国Herzog | Transformer in housing, 200-208/230V, 3680VA |
| 626-029 | 德国Herzog | Printer connection cable （Centronics） |
| 626-053 | 德国Herzog | Connection cable, PC to printer （CENTRONICS） |
| 626-072 | 德国Herzog | Connection cable, PC to instrument, RS 232, 2.5m |
| 626-082 | 德国Herzog | Connection cable, HTR connection between analysers, 0.8m |
| 626-138 | 德国Herzog | Connection cable, for HTR, instrument to instrument, 2.5m |
| 626-217 | 德国Herzog | CAN bus connection cable |
| 626-244 | 德国Herzog | Extension cable, 5 poles, MTA plug |
| 627-013 | 德国Herzog | Mains interference filter |
| 627-049 | 德国Herzog | Fan, 230V, for air exhaust MP470, HVU48x/490, HDV 632 |
| 627-098 | 德国Herzog | Cooling fan for MP 329 + HDA 626/627/628 |
| 627-103 | 德国Herzog | Cable for motor control, HCP 852 |
| 627-142 | 德国Herzog | Mains power filter, HVM 472 |
| 628-006 | 德国Herzog | Fuse, 0.5A - MT, for 230V |
| 628-007 | 德国Herzog | Fuse, 10A - MT |
| 628-008 | 德国Herzog | Fuse, 0.1A - MT |
| 628-018 | 德国Herzog | Fuse, 0.05A - MT |
| 628-020 | 德国Herzog | Fuse, 1A - MT |
| 628-021 | 德国Herzog | Fuse, 2A - MT |
| 628-023 | 德国Herzog | Fuse, 6.3A - MT |
| 628-025 | 德国Herzog | Fuse, 4A - MT |
| 628-028 | 德国Herzog | Fuse, 16A - T |
| 628-033 | 德国Herzog | Fuse holder, FEB 031. 1401 |
| 628-041 | 德国Herzog | Fire sensor |
| 629-018 | 德国Herzog | Over-temperature protection （Capillary tube limiter） |
| 629-028 | 德国Herzog | Control valve with connecting plug |
| 629-066 | 德国Herzog | Pressure sensor, range 0-1600 mbar |
| 629-067 | 德国Herzog | Pressure transducer, 1 Torr, HDV 632 |
| 629-068 | 德国Herzog | Pressure transducer, 10 Torr, HDV 632 |
| 629-069 | 德国Herzog | Pressure transducer, 100 Torr, HDV 632 |
| 634-181 | 德国Herzog | Mains filter, 2A |
| 634-198 | 德国Herzog | Plug, 6 pol, HFP 360 |
| 636-039 | 德国Herzog | Resistance thermometer, for bath wall temperature |
| 636-055 | 德国Herzog | Resistance thermometer, MC 850 + 305, HFP 36x |
| 636-056 | 德国Herzog | Pt 100 Resistance thermometer for MC 840, HCP 860, HCP842/852, HDV 632, HDA 627/628, without adjustment |
| 636-069 | 德国Herzog | Sample temperature probe, up to 400°C, MP329, HFP36x |
| 636-071 | 德国Herzog | Temperature sensor heating block, MP 329, HFP 36x |
| 636-089 | 德国Herzog | Resistance thermometer circulation, HCP 842/852 |
