Needle-type oxygen sensor, min 3 pcs

Features

• High spatial resolution (< 50 μm)
• No self-consumption of oxygen
• Penetration probe for insertion into vessels, sediments or biofilms
• Penetration through septa or skin
• Easy to handle
• Different needle sizes and lengths available
• Signal independent on flow velocity
• High temporal and spatial resolution
• No time for polarization necessary
• Insensitive towards electrical interferences and magnetic fields
• Measures oxygen in both liquids and the gas phase
• Optimal measuring range from 0 to 50 % oxygen (0-22.6 mg/L)
• Maximum measuring range from 0 to 100 % oxygen
• Limit of detection 0.2 % air-sat, 20 μmol/L
• Sterilizable (H₂O₂, EtOH)

Needle-type oxygen microsensor NTH is the miniaturized fiber optic chemical sensor designed for all research applications were a small tip size from 50 μm to 140 μm and fast response time (typ. 1 sec) are necessary. Needle-type oxygen microsensors are ideal for animal physiology or for oxygen distribution profiling in sediment or biofilms with micro-manipulators, and with a high spatial resolution (50 μm). The oxygen-sensitive tip of an optical fiber is protected inside a stainless steel needle. Such a design is the best for an easy penetration through a rubber septum or any other harsh material as well as for transportation. The fiber tip with its oxygen-sensitive coating has to be extended out of the steel needle for measurement. Fiber cables with a length up to 10 m and an outer diameter of 0.9 mm are available. If you need a more robust cable (OD 3.1 mm) or a cable length of more than 10 m (maximum 60 m), please contact us.