| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | TPI Corporation | TPI UT9001 | Heat Only Thermostat 05231102 |
| | TPI Corporation | TPI UT1001 | Heat Only for 24V and Millivolt Systems Low Voltage 05230502 |
| | TPI Corporation | TPI UT3001 | Cool Only T-stat Incorporates Fan & System Switches Low Voltage 05230602 |
| | TPI Corporation | TPI UT8001 | Heat/Cool for Single/Dual Transformer Systems Low Voltage 05230702 |
