My Apeks regs (XTX50/DST) got their annual service last week. I was packing to dive Saturday and realized the reminder is the scuba equivalent of the oil change reminder sticker that goes on your windshield. 
Had anyone else seen this on their regs? The shop that serviced them said it’s something newish.

Had anyone else seen this on their regs? The shop that serviced them said it’s something newish.