| GRADE | SIZE | WIRE OF TYPE | TYPE K | TYPE J | TYPE E | TYPE T | TYPE R |
| EXTENSION | 22AWG | 4/28 STRANDED | VX- GG-22S | JX- GG-22S | EX- GG-22S | TX- GG-22S | RX- GG-22S |
| EXTENSION | 20AWG | 7/28 STRANDED | VX-GG-20S | JX- GG-20S | EX- GG-20S | TX- GG-20S | RX- GG-20S |
| EXTENSION | 16AWG | 4/22 STRANDED | VX- GG-16S | JX- GG-16S | EX- GG-16S | TX- GG-16S | RX- GG-16S |
| THERMOCOUPLE | 30AWG | SOLID | K- GG-30 | J- GG-30 | E- GG-30 | T- GG-30 | - |
| THERMOCOUPLE | 28AWG | SOLID | K- GG-28 | J- GG-28 | E- GG-28 | T- GG-28 | - |
| THERMOCOUPLE | 24AWG | 7/32 STRANDED | K- GG-24S | J- GG-24S | E- GG-24S | T- GG-24S | - |
| THERMOCOUPLE | 24AWG | SOLID | K- GG-24 | J- GG-24 | E- GG-24 | T- GG-24 | - |
| THERMOCOUPLE | 22AWG | 4/28 STRANDED | K- GG-22S | J- GG-22S | E- GG-22S | T- GG-22S | - |
| THERMOCOUPLE | 22AWG | SOLID | K- GG-22 | J- GG-22 | E- GG-22 | T- GG-22 | - |
| THERMOCOUPLE | 20AWG | 7/28 STRANDED | K- GG-20S | J- GG-20S | E- GG-20S | T- GG-20S | - |
| THERMOCOUPLE | 20AWG | SOLID | K- GG-20 | J- GG-20 | E- GG-20 | T- GG-20 | - |
| THERMOCOUPLE | 16AWG | 4/22 STRANDED | K- GG-16S | J- GG-16S | E- GG-16S | T- GG-16S | - |