 |
 |
 |
 |
| Octopus 4000 kit #4 PLED display (light emitting display) computer platform includes laboratory grade pH probe, laboratory grade ORP probe, laboratory grade temperature probe and ph-ORP calibration kit with three X-10 module and the X-10 powerline interface. |
|
 |
 |
|
 |
|
 |

|