Robust Oxygen Probe
- Optical oxygen sensor
- Robust sensor tip 3mm in diameter
- Original REDFLASH-technology
- Works in gas (%O2) and in liquids (DO)
- No oxygen consumption
- Stainless steel
- >3 years shelf time
- Negligible drift
- Trace oxygen versions available
This robust oxygen probe is based on optical detection principles (REDFLASH technology). It measures oxygen in gaseous samples (oxygen gas) as well as in liquid samples (dissolved oxygen, DO). The sensor tip is enclosed by a stainless steel tube 3 mm in diameter and 30 or 100 mm in length. The complete sensor tip including its cabling can be submersed into water.
Trace range versions. Trace range versions are available for high precision measurements close to 0%O2. They offer about 5x higher resolution compared to the normal range oxygen sensors. The recommended measuring range is 0-10% O2. However, calibration at ambient air (21% O2) is possible, ensuring a straightforward calibration without the need of special calibration standards.
Compatible oxygen meters
FireStingO2
(FSO2-x)
FireStingGO2
(FSGO2)
FireStingO2-Mini
(FSO2-MINI-ST)
Normal Range Versions
| Item No. | Description (Tip Diameter / Length) |
Response Time (s)** |
Pricing in EU* |
|---|---|---|---|
| OXROB3 | Oxygen Probe (3mm / 30mm), 2m cable |
<15 s (liquid) <7 s (gas) |
240 € |
| OXROB10 | Oxygen Probe (3mm / 100mm), 2m cable |
<15 s (liquid) <7 s (gas) |
240 € |
| OXROB3-CL4 | Oxygen Probe (3mm / 30mm), 4m cable |
<15 s (liquid) <7 s (gas) |
270 € |
| OXROB10-CL4 | Oxygen Probe (3mm / 100mm), 4m cable |
<15 s (liquid) <7 s (gas) |
270 € |
Trace Range Versions
| Item No. | Description (Tip Diameter / Length) |
Response Time (s)** |
Pricing in EU* |
|---|---|---|---|
| TROXROB3 | Trace Oxygen Probe (3mm / 30mm), 2m cable |
<20 s (liquid) <3 s (gas) |
240 € |
| TROXROB10 | Trace Oxygen Probe (3mm / 100mm), 2m cable |
<20 s (liquid) <3 s (gas) |
240 € |
* Only EU-Prices shown. Contact us for pricing outside EU. Not for resale.
** Typical response times for 90% signal change
(T90).
For liquids: measured for the transition from
air into a stirred solution of 1% Na2SO3.
Specifications
Given for 2-point calibrated oxygen sensors at 1013mbar absolute pressure.
| Normal range versions | hPa | %O2 | %air sat. | mg/L |
|---|---|---|---|---|
| Optimum measuring range | 0-500 | 0-50 | 0-250 | 0-23 |
| Maximum measuring range (not specified) | 0-1000 | 0-100 | 0-500 | 0-45 |
| Detection limit | 0.2 | 0.02 | 0.1 | 0.01 |
| Resolution at 1% O2 | 0.1 | 0.01 | 0.05 | 0.005 |
| Resolution at 20% O2 | 0.5 | 0.05 | 0.25 | 0.025 |
| Accuracy at 1% O2 | ±0.2 | ±0.02 | ±0.1 | ±0.01 |
| Accuracy at 20% O2 | ±2 | ±0.2 | ±1 | ±0.1 |
| Trace range versions | hPa | %O2 | %air sat. | mg/L |
|---|---|---|---|---|
| Optimum measuring range | 0-100 | 0-10 | 0-50 | 0-5 |
| Maximum measuring range (not specified) | 0-210 | 0-21 | 0-100 | 0-9 |
| Detection limit | 0.05 | 0.005 | 0.02 | 0.002 |
| Resolution at 0.2% O2 | 0.02 | 0.002 | 0.01 | 0.001 |
| Accuracy at 0.2% O2 | typ. 2% of | reading, but | not better | than 0.01%O2 |
| All versions | |
|---|---|
| Temperature range | 0 to 50°C (specified), -20 to 70°C (not specified) |
| Minimum lifetime | 10,000,000 data points |
| Application areas | Laboratory, industry, research. Not for medical or any other safety-critical applications. Not for application in humans or in food intended for human consumption. |
| Compatibility | Gas-phase, aqueous solutions, short-term application in diluted ethanol, methanol, or isopropanol |
| Cross sensitivity | Other organic solvents, chlorine |
| No cross sensitivity | pH 1-14, CH4, CO2, H2S, any ionic species |
| Sterilization | Short term treatment with ethylene oxide (EtO), 70% ethanol, 70% isopropanol |
| Cleaning | 3 % H2O2, ethanol, soap solution |
| Storage time | >3 years in darkness at room temperature |
| Calibration | Single point, two point calibration |
| Connector | ST-plug |