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Tec 40 in worldwide: 4 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 2 publish course prices.
TecDiveTools lists 4 dive centres teaching Tec 40 worldwide. 2 of them publish course prices, in the currency the shop advertises and with the date each was checked — not converted, and not estimated.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 3 of these 4 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 3 have at least one instructor whose reviews we have read and summarised — a dive centre carries no synthesis of its own. How we read and count reviews.
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About the course
Take your first leap into technical diving with this entry-level course that introduces decompression diving, double-tank configurations, and professional technical equipment setups. You'll learn decompression theory, staged-ascent procedures, double-tank manifold configuration, and gas management for dives requiring mandatory stops. Tec 40 is the gateway to the PADI TecRec pathway and mastering it opens progression to Tec 45, Tec 50, and advanced technical specialties.
Successful planning and execution of limited decompression dives to 40m/130ft with mandatory staged stops, proper double-tank manifold setup and rigging, use of up to 50% oxygen as decompression gas, emergency procedures, and teamwork in technical environments.
4 dive centres on TecDiveTools teach PADI TecRec Tec 40 worldwide: Indonesia (2) and Thailand (2). Each is listed above.
Published prices for PADI TecRec Tec 40 worldwide range across 2 centres in the TecDiveTools directory. That is THB 24,000–24,900 (2 centres). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
Between 2 and 4 days, based on the durations 2 centres publish for it worldwide. 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.
At the same tier in TecDiveTools' cross-agency comparison, dive centres worldwide also teach TDI Advanced Nitrox (215), RAID Decompression (8) and SSI XR Extended Range Nitrox Diving (1). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.