Tec · Tec

Extended Range (ER)Push beyond 40 m on air & nitrox

TDI / IANTD

Course Overview

The Extended Range Diver course extends your training to 55 m with accelerated decompression using up to 4 tanks. 4 days, 6 dives, deep deco procedures — the next step after Decompression Procedures.

4 days Max depth: 55 m 18+ yrs From 35,000 THB

What You'll Learn

Skills & Knowledge

55 m diving with air/EAN
Complex decompression schedules
Multi-gas switches
Long deep deco
Team failure scenarios

Course Structure

How It Works

Day 1 — Theory & dry drills
Days 2–4 — In-water with progressive deep deco dives to 55 m

Prerequisites

Before You Start

Decompression Procedures
100+ logged dives
Minimum age 18

What's Included

In the Price

All tanks (4)
Deco gases
6 dives
Certified instructor
Cert card
Insurance

Price

35,000 THB

4 days, max depth 55 m

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