| MODEL | INPUT / RANGE | DESCRIPTION |
| 211C | 2 ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 212C | 20 ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 213C | 200 ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 214C | 2K ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 215C | 20K ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 216C | 200K ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 217C | 2 meg ohm | 4 1/2 digit ohmmeter / controller with single limit |
| 221C | 2 ohm | 4 1/2 digit ohmmeter / controller with dual limit |
| 222C | 20 ohm | 4 1/2 digit ohmmeter / controller with dual limit |
| 223C | 200 ohm | 4 1/2 digit ohmmeter / controller with dual limit |
| 224C | 2K ohm | 4 1/2 digit ohmmeter / controller with dual limit |
| 225C | 20K ohm | 4 1/2 digit ohmmeter / controller with dual limit |
| 226C | 200K ohms | 4 1/2 digit ohmmeter / controller with dual limit |
| 227C | 2 meg ohm | 4 1/2 digit ohmmeter / controller with dual limit |
