| 81000 | Universal 1-wire Zirconia Oxygen Sensor |
| 81000/1 | Universal 1-wire Zirconia Oxygen Sensor |
| 81012 | Universal 2-wire Zirconia Oxygen Sensor |
| 81012/1 | Universal 2-wire Zirconia Oxygen Sensor |
| 81014 | Universal 3-wire Zirconia Oxygen Sensor |
| 81014/1 | Universal 3-wire Zirconia Oxygen Sensor |
| 81022 | Universal 4-wire Zirconia Oxygen Sensor with insulated signal ground |
| 81022/1 | Universal 4-wire Zirconia Oxygen Sensor with insulated signal ground |
| 81024 | Universal 4-wire Zirconia Oxygen Sensor with insulated signal ground, with flange |
| 81094 | 4-wire Universal M18 Titania oxygen sensor |
| 81512 | 4-wire Universal M12 Titania oxygen sensor |
| 81513 | 3-wire Universal M12 Titania oxygen sensor |
| 81514 | 3-wire Universal M18 Titania oxygen sensor |
| 81515 | Universal 4-wire Zirconia oxygen sensor with body ground (Case ground) |
| 81516 | Universal 4-wire Bosch-type planar oxygen sensor (10 Ohm) |
| 81601 | Universal 4-wire Planar High Impedance (16 Ohm) Oxygen Sensor |
| 81700 | 4-wire planar oxygen sensor, DENSO type |
| 81701 | Universal 4-wire Zirconia Oxygen Sensor with insulated signal ground, DENSO type |
