DTS Gas Guru

- Mixer: the top-up gas and the second bank are now "Custom mix", with oxygen AND helium, so you can top up from a trimix bank or a storage cylinder of mix. - Pinch to zoom the MOD, Density and Mixer tables. Pinch back or double-tap to return. - Mix Library: ships with six working mixes; the add-a-mix form is the first row; "Suitable at" lists every gas you can breathe at the depth; each row's MOD follows that mix's own limits; a mix you delete stays deleted. - Clearer MOD labels: the Density tool and cylinder labels state the ppO2 and END each depth was worked out at. - SCR: choose CMF or PSCR before any figure is shown. - Settings: Reset restores every setting; water temperature stops at 33 °C everywhere; new mixes start on your own limits. - The quick start turns its page with a swipe. - "SM / TWINS" on the cylinder pickers. - Many smaller wording and display fixes. Always analyse every cylinder before you breathe from it.

This update makes the gas tools stricter where it matters and clearer everywhere else. Safer answers • A mix can no longer add up to more than 100%. On Gas Check, Density and every Mixer tab, the O₂ and He fields now stop at whatever the other one leaves: with O₂ at 16, helium stops at 84. • Best Mix never recommends a nitrox leaner than air. Deeper than a nitrox can go at your chosen ppO₂, it now says so, shows air's figures and points you to trimix, with no label or recipe for a gas no fill station can blend. New • Best Mix on open circuit now has the Max Density field that CCR already had. It starts at your Gas Limits setting and applies to that calculation only. • Remove the standard cylinder sizes you never use. In Settings > Cylinders, tap the x on any size to hide it from the table and every cylinder picker; one tap on Reset brings them all back. A cylinder you have already chosen keeps its size. Clearer • Gas Check's hypoxic warning simply tells you the depth you cannot breathe the mix above. • The "depth exceeds the safe MOD" alert now states the ppO₂, your limit and the maximum operating depth, without generic toxicity claims. • On CCR, Gas Check and Best Mix no longer show a hypoxic warning or a loop density for the diluent, since you breathe the loop, not the diluent. • Gas Guru now reads in your language on every screen, including sign-in and the first-run safety notice. • Signing in stays signed in: a server error no longer signs you out of mix sync. • The header wordmark now sits in the centre of the screen. As always: analyse every cylinder before you breathe it.