Seac Action, Dive Computer with Scuba and Freediving Mode,

Product Overview

The Seac Action is a versatile dive computer engineered for divers who value precision, adaptability, and reliability across a range of underwater environments. Designed to support both scuba diving and freediving, it delivers real-time monitoring and critical dive data to help you stay informed and safe beneath the surface. Whether you’re exploring coral reefs on scuba or pushing your limits in breath-hold dives, the Seac Action adapts to your activity with dedicated modes and intelligent feedback. Its robust black and blue housing is built to withstand the rigors of frequent use, while the intuitive interface ensures quick access to essential information. With advanced decompression calculations and customizable settings, this dive computer is a dependable tool for recreational divers seeking clarity and control during every descent and ascent.

Key Features

• Advanced Decompression Algorithm: Powered by the Bühlmann ZHL-16C algorithm, the Seac Action calculates decompression stops with high accuracy, supporting safer ascents and multi-level dives in varied conditions. This proven algorithm is trusted by divers worldwide for its reliability in managing nitrogen absorption and release, helping reduce the risk of decompression sickness.
• High-Visibility Display: The backlit screen ensures clear readability in low-light environments such as night dives or deep-water excursions. Integrated audible and visual alarms alert you to critical thresholds—like depth limits, no-decompression time, and ascent rate—so you can respond promptly without needing to constantly monitor the display.
• Multiple Dive Modes: Seamlessly switch between Scuba, Gauge, and Free Dive modes to match your activity. Each mode delivers tailored data: scuba mode tracks depth, bottom time, and decompression status; gauge mode provides basic depth and time for non-decompression dives; and free dive mode records dive time, surface intervals, and maximum depth for breath-hold sessions.
• Extended Dive Logging: The internal memory stores up to 40 hours of scuba data recorded at 5-second intervals and 18 hours of freediving data at 2-second intervals. This detailed logging supports post-dive analysis, helping you review patterns, improve technique, or share data with instructors and dive buddies.
• Customizable Interface: Choose between imperial and metric units to match your preference. The computer automatically adjusts for altitude up to 9,870 feet (3,000 meters), making it ideal for high-elevation lakes and mountain diving where atmospheric pressure affects dive calculations.
• User-Replaceable Battery: Powered by a standard CR2450 battery, the Seac Action allows for quick and easy battery replacement without professional tools or servicing. This feature is especially valuable for divers on extended trips or in remote locations where access to service centers is limited.

Technical Specifications

• Decompression Algorithm: Bühlmann ZHL-16C
• Operating Modes: Scuba, Gauge, Free Dive
• Display: Backlit with audible and visual alarms
• Memory Capacity: Up to 40 hours (Scuba, 5-second intervals), 18 hours (Free Dive, 2-second intervals)
• Units: Switchable between imperial and metric
• Altitude Compensation: Up to 9,870 ft (3,000 m)
• Battery: User-replaceable CR2450
• Color: Black/Blue

Benefits & Use Cases

The Seac Action shines for divers who enjoy both scuba and freediving, eliminating the need for multiple devices. Its scuba mode supports recreational air and nitrox dives with real-time no-decompression limits and ascent warnings, while the freediving mode tracks rapid depth changes and surface recovery times—essential for training and safety in breath-hold diving. The high-visibility display and dual alarms enhance situational awareness during challenging conditions like night dives or low-visibility water. For divers exploring high-altitude destinations, the automatic altitude compensation ensures accurate depth and decompression calculations, which are crucial when diving in lakes or reservoirs above sea level. The extensive memory capacity allows you to store weeks of dive data, useful for logging progress, preparing for certifications, or sharing experiences with dive communities. The user-replaceable battery adds practical value for frequent travelers or those diving in isolated areas, reducing reliance on external service and minimizing downtime between trips.

Important Notes

The Seac Action is intended for recreational diving using air and nitrox within no-decompression limits. Always plan dives within your training and experience level, and consult a certified instructor when attempting advanced profiles. When replacing the battery, ensure the O-ring is clean, properly lubricated, and seated correctly to maintain the unit’s water resistance. Avoid exposing the device to extreme heat or prolonged direct sunlight, as this may affect performance and longevity. After each dive, rinse the computer thoroughly with fresh water to remove salt, sand, and debris. While the Seac Action offers comprehensive dive tracking, it does not include air integration or wireless connectivity—tank pressure must be monitored separately using a compatible gauge if required.