C500 Sensor (low temp)
C700 Sensor (high temp)

Oxygen Sensors

SIRO2 C700+ Solid Zirconia Electrolyte Oxygen Sensor

The SIRO2 sensor is a simple, robust, all ceramic oxygen sensor. It is used for measurement and control of oxygen at high temperature. The sensor can be inserted wherever measurement is required - no sampling or gas extraction equipment is needed.



The sensor consists of a solid zirconia ceramic electrochemical cell bonded to an alumina tube.
Detail of Sensor TipDetail of sensor tip, showing zirconia electrolyte. The electrolyte is grooved to allow attachment of an electrode wire. Each sensor is traceable by its unique serial number.
Dynamic Range:From pure Oxygen down to 10-24 atmospheres
Output:According to the Nernst Equation
Sensitivity:Better than 2 mV
Response Time:Less than 0.5 seconds
550C to 1700C.
Note that below 600C, the response may be slower and the error may increase to 3 mV. We can supply individually selected sensors tested, calibrated and certified for use at 500C
Diameter:8 mm Outside, 5 mm Bore
Length:Any length up to 1400 mm (2 metres on special order)

Ordering Information

If you would a detailed product brochure, please use our Enquiry Form and fill out the details including your postal address.

The Sensors can be ordered in 2 ways:

For pricing information, please specify the length and quantity of sensors required. We will send a quotation.

We can recommend suppliers of industrial duty probes. Manufacturers of process control equipment in Japan, USA, Korea, India, England, Poland, Switzerland, China and Australia use the SIRO2 sensor as the basis of their oxygen probes. We can pass on your enquiry to one of these companies.


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