A technical diver handling decompression stage cylinders during a dive

Photo by Teemu Virtanen · CC BY-SA 3.0

OC Tech (50m)PADI TecRec

Tec 50

Official course standards ↗Last updated September 7, 2026

Master extended-range technical diving to 50 metres with complex decompression strategies, multiple staged gases, and precision gas management. The Tec 50 course builds directly on Tec 45 training, introducing extended decompression schedules and deeper nitrogen narcosis management. You'll develop the skills needed for deep wreck exploration, remote technical dives, and high-risk environments where decompression errors have serious consequences. Tec 50 represents a significant milestone in technical diving progression and qualifies you for advanced specialized training like trimix, sidemount, or CCR systems.

Centres that teach this course

12 dive centres in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.

€500 – €800across 4 centres pricing in Eurofrom ≈ $561

Charged by the day or dive rather than as a course price:

THB 30,000 – THB 44,900across 3 centres pricing in Thai Bahtfrom ≈ $895
One centre publishes a price in US Dollar.

Charged by the day or dive rather than as a course price:

One centre publishes a price in Mexican Peso.
One centre publishes a price in Philippine Peso.
  • Tech AsiaPhilippines
    PADI Tec 50
    ₱32,950
    total

Same training under a different agency

23 centres

A separate set of centres, teaching Extended Range under a different agency. These are not the same certification — the standards and the card differ — but they cover the same depth and scope, which is why centres price them alike. Every row here names whose rating it is, and none of them is counted above.

IDR 10,000,000 – IDR 20,700,000across 10 centres pricing in Indonesian Rupiahfrom ≈ $557
  • Bali Dive TrekIndonesia
    SSI Technical Extended RangeSSI XR
    IDR 20,700,000
    total
  • Sulawesi Dive TrekIndonesia
    Technical DiverIANTD
    IDR 15,000,000
    total
  • Bali Dive TrekIndonesia
    RAID Deco 50 DiverRAID
    IDR 17,500,000
    total
  • Gili DiversIndonesia
    Advanced Decompression Diver (50m)RAID
    IDR 10,000,000
    total
  • Gili DiversIndonesia
    Extended Decompression Diver (55m)RAID
    IDR 15,000,000
    total
  • Bali Dive TrekIndonesia
    TDI Extended RangeTDI
    IDR 20,700,000
    total
  • Bali Dive TrekIndonesia
    IANTD Technical DiverIANTD
    IDR 17,500,000
    total
  • Blue Marlin TechIndonesia
    Extended RangeTDI
    IDR 15,000,000
    total
  • Manta DiveIndonesia
    TDI Extended RangeTDI
    IDR 12,500,000
    total
  • Trawangan DiveIndonesia
    TDI Extended Range DiverTDI
    IDR 12,600,000
    total
€550 – €850across 9 centres pricing in Eurofrom ≈ $617
$950 – $1,400across 2 centres pricing in US Dollar

Charged by the day or dive rather than as a course price:

  • Cave AdventurersUnited States
    Extended RangeTDI
    Private class$450/day→ $1,350 for the 3-day minimum
    Group class$350/day→ $1,050 for the 3-day minimum each
    $450
    per day
  • Divers UnderGroundMexico
    TDI Extended RangeTDI
    $325/day
    $325
    per day
  • Under The JungleMexico
    Extended RangeTDI
    private$345/day→ $1,380 for the 4-day minimum
    per diver in a group$295/day→ $1,180 for the 4-day minimum each
    $345
    per day
THB 25,000 – THB 44,900across 4 centres pricing in Thai Bahtfrom ≈ $746
One centre publishes a price in Philippine Peso.
  • Tech AsiaPhilippines
    TDI Extended RangeTDI
    ₱54,000
    total

Same tier, agency not stated

11 centres

These centres publish a price for Extended Range, but their own wording does not say which agency's certification it buys — many teach several and name the card only once you enquire, and some price one course for either agency. The figure is comparable; the certification is not identified, so we do not guess at one.

€650 – €900across 4 centres pricing in Eurofrom ≈ $729

Charged by the day or dive rather than as a course price:

  • Ritual DiveMalta
    SSI XR Technical Extended Range
    €200/day→ €1,000 for the 5-day minimum
    €200
    per day
THB 29,000 – THB 35,000across 4 centres pricing in Thai Bahtfrom ≈ $865
One centre publishes a price in Indonesian Rupiah.
One centre publishes a price in US Dollar.
  • Horizon DiversUnited States
    Extended Range / Trimix (TDI or IANTD)
    $1,600
    total

These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.

Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.

Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.

Prerequisites

PADI Tec 45 Diver, PADI Rescue Diver, 100 logged dives (or 75 hours), 18 years old

Standards

What a diver must demonstrate to pass this course — not always published by the certifying agency.

Make extended-range dives to 50m/165ft with multiple decompression stops using two decompression gases; plan and execute decompression procedures with precision; manage nitrogen narcosis at depth; use double cylinders in backmount or sidemount configuration

Instructors Teaching This Course

Dive Centres Offering This Course

We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.

Common questions about PADI TecRec Tec 50

How much does PADI TecRec Tec 50 cost?

Published prices for PADI TecRec Tec 50 range across 10 centres in the TecDiveTools directory — roughly US$500 to US$1,350 at current exchange rates. In each centre's own currency: €500–€800 (4 centres), THB 30,000–44,900 (3 centres), $990 (1 centre), MX$12,000 (1 centre) and ₱32,950 (1 centre). 1 centre charges by the day instead, which is not comparable with a course total. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.

How long does PADI TecRec Tec 50 take?

Between 2 and 4 days, based on the durations 9 centres publish for it. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.

What are the prerequisites for PADI TecRec Tec 50?

PADI TecRec's standards require: PADI Tec 45 Diver, PADI Rescue Diver, 100 logged dives (or 75 hours), 18 years old.

What is the minimum age for PADI TecRec Tec 50?

PADI TecRec's standards state: 18 years old.

How many dives do I need before starting PADI TecRec Tec 50?

PADI TecRec's standards state: 100 logged dives (or 75 hours).

What does PADI TecRec Tec 50 training involve?

According to PADI TecRec's published standards: Make extended-range dives to 50m/165ft with multiple decompression stops using two decompression gases; plan and execute decompression procedures with precision; manage nitrogen narcosis at depth; use double cylinders in backmount or sidemount configuration.

What is the equivalent of PADI TecRec Tec 50 in other agencies?

At the same tier in TecDiveTools' cross-agency comparison: RAID Advanced Decompression, RAID Extended Decompression, TDI Extended Range, PSAI Extended Range Nitrox and IANTD Technical Diver. They cover comparable training, but each agency sets its own standards, depth limits and certification card, so they are comparable rather than interchangeable — check which one your next course accepts.

What course comes after PADI TecRec Tec 50?

The next step in PADI TecRec's progression is PADI TecRec Tec Trimix 65.

Where can I take PADI TecRec Tec 50?

4 dive centres and 4 instructors in the TecDiveTools directory teach PADI TecRec Tec 50, in Indonesia and Thailand. Each is listed further up this page.

Does the price of PADI TecRec Tec 50 include gas and equipment?

Not always — it varies by centre. Certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.