Shearwater Research Swift AI Transmitter

FGSS lists the Shearwater Research Swift AI Transmitter here as an Amazon-affiliate pick from Shearwater Research. Pairs with Shearwater Teric, Perdix AI and Nerd 2 computers; Perdix AI supports up to 2 transmitters. 3V CR2 lithium battery, user-replaceable, roughly 300 hours of dive-time battery life. Depth rated to 200m, no-tools installation on a regulator first stage. This transmitter doesn't work as a standalone instrument -- it only adds wireless tank-pressure data to a compatible Shearwater computer you already own, so confirm your specific computer model supports it before ordering. This one's fulfilled through Amazon rather than FGSS's own warehouse -- as an Amazon Associate, we earn a small commission on qualifying purchases through this link, at no extra cost to you. Worth a look at FGSS's own Scuba Dive Computers collection too, if that's relevant to what you're after.