| Brand | TEKMAR |
| Compatible Brand | For tekmar |
| Item Thickness | 2-7/8" |
| Type | H2O reset control |
| Power Source | 24vac |
| Voltage | 24vac |
| Model | tekmar 228 |
| Item Length | 4-1/4" |
| Country Of Origin | Canada |
| Item Width | 2-1/2" |
This is a used Tekmar 228. The date on this is 1991. I also have two others dated 1989 and 1992. These are old. I think it uses 2K ohm sensors. Still looking. Old new STUFF.