TUSA

TUSA RS-1001 (DIN)

TUSA's current top-tier balanced diaphragm reg, with high-flow LP ports and a cold water insulation system.

Environmentally sealed, cold-water rated

Sealed first stage keeps water and ice crystals out of the internal mechanism, the standard for diving below 50°F/10°C.

TUSA RS-1001 (DIN)
$569
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Released—
First stagediaphragm
BalancedYes
Environmentally sealedYes
Cold-water ratedYes
ConnectionDIN
Max pressure—
HP / LP ports2 / 4
Adjustable 2nd stageYes
Weight1000g
Nitrox-ready (EAN40)Yes
Octo includedNo

"HP / LP ports" is the number of high-pressure and low-pressure ports on the first stage, which caps how many accessories (transmitter, SPG, inflator, second second-stage) you can run at once.

Pros
  • Two of the four LP ports are TUSA's "high flow" spec, rated for up to 15% more airflow than the standard ports
  • Ecologically sealed first stage protects internals from pool chemicals, salt and sand, and it's tested to 39°F/4°C for cold water
  • Left-or-right second stage hose configuration without extra parts
Cons
  • Composite second-stage case feels less premium than metal-bodied competitors at a similar price
  • DIN version costs noticeably more than the yoke configuration ($569 vs $399)
  • No published nitrox percentage rating in TUSA's own spec sheet beyond general EAN compatibility

We couldn’t confirm a current or past TUSA model marketed as “RS-830 Hyperion” from any manufacturer or retailer documentation, so this entry covers the RS-1001, TUSA’s actual current flagship-tier balanced diaphragm regulator (paired with the S0001 second stage). It’s the reg TUSA positions above its mid-range RS-681 for divers who want the brand’s best cold-water and high-flow performance.