The PSR-11-77 is a replacement galvanic oxygen sensor from Analytical Industries Inc. With a response time of6 seconds, the 11-77 unit has a life of 60 months and is compatible with the following equipment:
- Newport OM100
- Sechrist 650 Monitor
- Teledyne 60t
- Teledyne 91
- Teledyne 200
18 months manufacturers warranty.