Replacement and/or additional parts for the X1W kits can be obtained from the following sources:
| Mouser Electronics | general components |
| Digi-Key | general components, some 1-Wire devices, pressure transducer |
| Arrow Electronics, Inc. | general components, pressure transducer |
| Maxim IC (Dallas Semiconductor) |
1-Wire devices |
| Sager Electronics | general components, humidity transducer |