Orbisphere A1100 Oxygen Sensors

The Orbisphere A1100 oxygen (O2) sensor is the latest development of the well-known and proven Orbisphere Electro-Chemical (EC) sensors. This sensor is designed for process monitoring as well as for laboratory analysis in the liquid or gas phases across a wide range of applications: From beer or soft-drink production to rinsing of semiconductor wafers in chip-manufacturing plants, reactor coolant systems in nuclear power plants, or any place where oxygen measurement is critical.

The A1100 features unrivalled accuracy and response time for fast detection of process change. The unique design of the Orbisphere sensor allows for extended periods between recharges.

- Ideal for Harsh Environments
- Simple Installation and Operation
- Low Maintenance
- Easy Calibration
- Uncomplicated Data Management
  Wetted materials
EUR Price


Range at 25 °C -5 – 95 °C 2935A-A : 10 ppb–400 ppm or 20 Pa–1,000 kPa
2952A-A : 1 ppb–80 ppm or 5 Pa–200 kPa
2956A-A : 0.1 ppb–20 ppm or 0.25 Pa–50 kPa
29552A-A : 2 ppb–80 ppm or 5 Pa–200 kPa
±1% of reading, or ± lower measurement range, whichever is greater ±1% of reading, or ± lower range, whichever is
greater (Assuming correct calibration)
Stainless Steel 1.4404 (AISI 316L), surface finish: N5, Ra < 0.4 µm
Membrane (see specification table).
No O-rings are in contact with the sample.
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