We received the following from Honeywell

As part of our program of continuous improvement, we have updated our Sensepoint sensor for the detection of oxygen (O2) and these products now features the same cell as used in our XNX and Sensepoint XCD fixed point gas detectors. The updated sensors are available using a range of new part numbers. Please refer to the table below which lists the new part numbers together with information on the products that these replace.

Note that the Cell Replacement Kit 2106B1544 cannot be used in the existing sensors 2106B1430, 2106B1530, 2106B1730 or 2106B1830 and Replacement Sensor SPSTAXO2SS cannot be used in existing product SPSTAXO1. As a result, previous Cell Replacement Kit 2106B1545 and SPSTAXO1SS are obsolete with immediate effect.

For customers wishing to replace the cell of an existing sensor, please offer the Sensepoint O2 Cell Conversion Kit 2106B1584.

The manual and data sheet for the Sensepoint product will be updated in due course.

The new part numbers are active and are shipping from the factory now.

Should you have any questions, please contact your Honeywell | Gas Detection representative.