The PSR-11-37-52D will work in the Analox O2EII analyzer.

We are a high volume retailer of AI brand diving sensors, assuring that replacement sensors ordered from Dive Gear Express are always among the freshest available. Due to the unique nature of the product, this diving grade oxygen sensor is NON-RETURNABLE. Your complete satisfaction is our goal, so please consider carefully before purchase.

Oxygen sensors are one of the very few items on our website that are NOT returnable, because we can't know with absolute certainty how they were handled once delivered. Additional shipping and handling of the return can also degrade performance. They are critical to safety in diving, and our customers have a reasonable expectation of receiving as factory fresh a product as possible from Dive Gear Express. Your complete satisfaction is our goal, so please consider carefully before purchase.