RedEye Oxygen Sensing Patches

Free!

For non-invasive oxygen monitoring

Availability:
View Product Models
RE-FOS-4 Single RedEye patch, 4 mm, FOSPOR coating
RE-FOS-8 Single RedEye patch, 8 mm, FOSPOR coating
RE-FOS-4-KIT 5 pack RedEye patch, 4 mm, FOSPOR coating
RE-FOS-8-KIT 5 pack RedEye patch, 8 mm, FOSPOR coating
RE-HI-4 Single RedEye patch, 4 mm, HIOXY coating
RE-HI-8 Single RedEye patch, 8 mm, HIOXY coating
RE-HIOXY-HTC Single RedEye autoclavable patch, polycarbonate disc, 8 mm, HIOXY coating
RE-HI-4-KIT 5 pack RedEye patch, 4 mm, HIOXY coating
RE-HI-8-KIT 5 pack RedEye patch, 8 mm, HIOXY coating
RE-FOX-4 Single RedEye patch, 4 mm, FOXY coating
RE-FOX-8 Single RedEye patch, 8 mm, FOXY coating
RE-FOX-4-KIT 5 pack RedEye patch, 4 mm, FOXY coating
RE-FOX-8-KIT 5 pack RedEye patch, 8 mm, FOXY coating

Out of stock

Our easy to use, peel-and-stick indicator patches measure oxygen safely and non-invasively in sealed packaging and containers used in medical, pharmaceutical and food applications. They can be applied to flexible substrates of essentially any shape or size, and these patches can be adhered to a transparent vessel or process line. Using a combination of proprietary sensing material and measuring technologies, this patch enables rapid, quantitative determination of oxygen levels.

RedEye® coatings are capable of monitoring low levels of oxygen in gas (0.01%) and dissolved oxygen in liquids (4 ppb), as well as the higher oxygen levels present in cell culture and respiratory monitoring.

Non-invasive monitoring with RedEye® indicator patches

RedEye O2 sensors in bottlesMeasurements of sensor patch fluorescence are quickly and conveniently through the container wall using a fiber optic probe. This opens the door to applications that require monitoring of closed systems, such as biological processes, food and beverage packaging, and laboratory apparatuses.

  • Patches are interior to the sample packaging, container, or chamber, while probe remains outside.

Making Measurements:

  • Measure patches using an RE-BIFBORO-2 fiber probe, NeoFox measurement instrument, and NeoFox Viewer software.
  • Small patches may be better for small vessels.
  • Larger patches are less alignment-sensitive, and allow for more probe and vessel movement.
  • Are available in all sensor formulations.

Patch Qualities:

  • Flexible patch material allows adhesion to curved surfaces.
  • Silicone adhesive maintains optical clarity and mechanical hold to glass and plastics for months in aqueous environments; tested at pH 1 and 11, in DI water, and seawater.
  • Fast response (<5 seconds without overcoat, <20 seconds with overcoat) in both gas and liquid media.
  • Custom diameters or shapes available upon request.

Optional Silicone Overcoat:

  • Excludes ambient light and cross-fluorescence.
  • Eliminates interference from sample color and turbidity.
  • Protects the sensor from biofouling interference and chemical degradation.
  • Increases response time; use only to mitigate interfering factors described above.
  • The overcoat applied to our FOSPOR chemistry has been USP Class VI certified.

Mechanical Specifications

Engineering Specifications RE-xx-4 RE-xx-4-KIT
Patch diameter: 4 mm 4 mm
Quantity: 1 5
Substrate material: Acrylate Acrylate
Temperature range: 0 to 60 ºC 0 to 60 ºC
Overcoat option: Yes Yes
Adhesive pH compatibility: pH 4.0 – 10.0 pH 4.0 – 10.0

Engineering Specifications RE-xx-8 RE-xx-8-KIT
Patch diameter: 8 mm 8 mm
Quantity: 1 5
Substrate material: Acrylate Acrylate
Temperature range: 0 to 60 ºC 0 to 60 ºC
Overcoat option: Yes Yes
Adhesive pH compatibility: pH 4.0 – 10.0 pH 4.0 – 10.0

Engineering Specifications RE-HIOXY-HTC
Patch diameter: 8 mm
Quantity: 1
Substrate material: Polycarbonate disc
Temperature range: 0 to 140 ºC
Overcoat option: Yes
Adhesive pH compatibility: pH 4.0 – 10.0

RedEye® Oxygen Sensing Specifications

Reported in percent oxygen at different oxygen measurement levels

0% 1% 5% 10% 20% 50% 90% 100%
Accuracy
FOSPOR 0.10 0.01 0.20 0.10 0.05 0.50
HIOXY 0.02 0.01 0.01 0.01 0.01 0.10
FOXY 0.05 0.20 0.20 0.10 0.20 0.05
Resolution
FOSPOR 0.002 0.003 0.003 0.005 0.01 0.04 0.1 0.1
HIOXY 0.003 0.004 0.02 0.01 0.05 0.1 0.2 0.2
FOXY 0.003 0.003 0.01 0.01 0.01 0.02 0.1 0.1

Drift Specifications

  At 0% Oxygen At 20% Oxygen
FOSPOR 0.0005%/hr <0.001%/hr
HIOXY 0.005%/hr 0.015%/hr
FOXY 0.010%/hr 0.150%/hr

Application Notes:

Measurement Techniques in which this product is used: