Jenway have recently updated their dissolved oxygen probes. To ensure you get the correct probe please read the following:
Jenway have an extensive range of dissolved oxygen probes suitable for portable or bench dissolved oxygen meters. The probes for the dissolved oxygen meters have all been updated in order to unify the range.
The dissolved oxygen probes have been redesigned so that they are all the same diameter. As a result of this redesign the new probes have a narrower diameter than the old probes.
The new probes are easily identified with a B after the probe part number on the probe or meter packaging.
When any dissolved oxygen probe is purchased either with a dissolved oxygen meter or by itself it is supplied with one membrane fitted and two spare membranes.
To compliment the new probe design the dissolved oxygen membranes have also been redesigned. The photo below shows the difference between the old and new membranes.
OLD OLD NEW
541 551 522 019 522 019B
Internal Diameter: 15mm Internal Diameter: 10mm Internal Diameter: 8mm
Height: 24mm Height: 25mm Height: 19mm
The old membranes 541 551 and 522 019 are supplied in containers and the new membranes are not supplied in containers. The new membranes will not fit on old probes and old membranes will not fit on new probes.
Jenway will continue to support existing customers by stocking membranes for the old probes. For details on which part number to order refer to the relevant dissolved oxygen meter and probe section below:

Dissolved oxygen meter 970
Old probe – part number 970 231

Probe length: 153mm
External diameter: 12mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
970 231 | 522 019 | 552 050 |
New probe – part number 970 231B

Probe length: 190mm
External diameter: 12mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
970 231B | 522 019B | 552 050B |
Dissolved oxygen meter 9500
Old probe – part number 522 023

Probe length: 153mm
External diameter: 12mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
522023 | 522 019 | 552 050 |
New probe – part number 522 023B

Probe length: 190mm
External diameter: 12mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
522 023B | 522 019B | 552 050B |
Dissolved oxygen meter 9150 and 9200
Old probe – part number 541 520

Probe length: 160mm
External diameter: 20mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
541 520 | 541 551 | N/A |
New probe – part number 541 520B

Probe length: 190mm
External diameter: 12mm
For this probe order the following accessories:
Probe Number | Membrane kit | B.O.D Kit |
541 520B | 522 019B | 552 050B |
Availability
The table below shows the dates which the old probes were discontinued and replaced with the new probes:
Unit | Old Probenumber | New Probenumber | Date replaced |
970 | 970 231 | 970 231B | September 2009 |
9500 | 522 023 | 522 023B | November 2009 |
9150 | 541 520 | 541 520B | December 2009 |
9200 | 541 520 | 541 520B | December 2009 |
Pricing
The list price for the new probes and new membrane kits is the same as the old probes and old membrane kits.
Contact camlab below for more information
Hello! i want to purchase a DO2 Meter 970 Probe kindly confirm me the price including shipment in pakistan….
Unfotunately Zafar these are no longer available can you contact us using the contact form as we can offer an alternative