Diver one of sixteen to die using high-tech gear

[rcojr]

I can"t speak to the Cislunar I never considered it as it was way out of my means(about $25,000)
Checking the sensors(there are three) at depth is easy. Being a good Tec. diver you always know what fraction of 02 you are breathing and you know how deep you are. It's a simple matter to take f02xata and calculate the PP02. When you know that you just do a Diluent flush and check to see if your 02 sensors are reading correctly. John J. that just posted to the list puts duct tape on the back of his handset and enters all the numbers on the surface(no math a depth)