By Hyper living

Hyper S400 1L Mini Scuba Tank

$274.99 - $484.99
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Color: Black
Combination: A
Regular price $274.99
Regular price $499.00 Sale price $274.99
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Collapsible row

The S400 is compact, lightweight, and built for short underwater adventures or reliable backup use. Its fixed pressure gauge sits directly on the first stage regulator for quick, at-a-glance air checks. Paired with the included diving bag, it’s easy to carry, simple to set up, and always ready for your next dive.

CE, TUV, and DOT certified
Approx. 75 breaths at 200 bar (tested at 5m depth)*
Diving bag included
* The number of breaths may be affected by factors such as diving depth. For your safety, always monitor the pressure gauge and do not exceed 5 meters (16 ft).

Availability: 59 in stock
SKU: DP21-1LQP-1
Regular price $274.99
Regular price $499.00 Sale price $274.99

S400 1.0L MINI SCUBA TANK

S400 mini scuba tank breathe easy

Breathe Easy

The fixed pressure gauge provides constant visibility of air levels while the regulator delivers smooth, controlled airflow.

6061 aluminum oxide film tank

Pressure + Corrosion Resistant

Crafted from aviation-grade aluminum and reinforced with a protective oxide film for corrosion resistance and long-lasting safety.

portable lightweight diving tank

Lightweight + Travel-Ready

Weighs just over 5 lbs and comes with a diving bag for hands-free transport—perfect for pool sessions, snorkeling, or quick dives off the coast.

Hyper S400, a mini diving tank that allows you to stay up to 20 minutes underwater, with regulator and 1L capacity.

 Brand    Hyper Type    S400
 Color    Green Black N.W    2.33kg
 Using time    Up To 20 minutes Size    36 × 6.8 × 8.9cm
 Material    6061 Aviation Aluminum Capacity    1 L
 Max working pressure     3000psi/200bar/20Mpa Surface Technology     Hard oxidation + Plastic spraying
 Breathing valve thread     M18×1.5 Output way    Constant pressure is about 1Mpa
 Inflatable male     8mm Breathing times     (Calculated at 0.5L per breath) About 340 times

The Hyper S400 1L Mini Scuba Tank is designed for short underwater dives, providing up to 20 minutes of breathing time. With its compact size and lightweight design, it is perfect for recreational divers, emergency rescues, yacht maintenance, and even treasure hunting.

Lightweight equipment for diving

This mini scuba tank is only the size of a bottle of water and allows you to dive to a depth of 3 meters. It is completely independent, allowing you to breathe underwater for a few minutes to pick up things or untie ropes stuck in the ship’s propeller.

An unprecedented experience

We knew that people use mini scuba tanks for recreational diving, yacht maintenance, lobstering, treasure hunting, fossil hunting, etc. … There are so many Hyper feedback videos from all over the world. If you are a professional diving enthusiast or a diving beginner, don’t hesitate to get your spare diving artifact.

More delicate details

High-precision instrument underwater fluorescent display Breathing mouthpiece Ergonomic design, comfortable to use and not easy to fall Pressure relief valve Press and hold moderately for easy pressure relief.

Three kinds of inflation air ways

High hand pump Manually pump up to 1000-1200 times.
Refill adapter Large bottles guide vials the fastest and most convenient, fill up in about 10 seconds.
Electronic pump Plug and play fill in about 26 minutes.


Note:
Do not stand directly above the product during inflation.
Always relieve pressure after inflation is completed, otherwise, it will cause danger.
Max pressure of Inflatable: 3000PSI/200BAR/20MPA

USING IT MORE SAFER

SMACO S400 diving gear adopts a constant pressure air outlet device to make the air outlet pressure constant, making breathing very easy.At the same time, an external explosion-proof valve design is adopted, which makes the explosion-proof index more accurate and safer to use.

Videos


Frequently Asked Questions


What is the maximum operating depth of this product?

The maximum operating depth depends on the tank size:

0.5L–1L Tanks: Suitable for use up to 5 meters (16 feet). When used with a full-face mask, the maximum depth is 3 meters (10 feet).

2L Tanks: Suitable for use up to 10 meters (33 feet).

How long does a full tank last?

Breathing time varies depending on depth, activity level, and breathing rate. On average, 0.5L tanks provide approximately 6–10 minutes of air at shallow depths. 1L tanks offer around 15–20 minutes, while 2L tanks may last 30–35 minutes.

Always monitor your pressure gauge during use. If the pressure gauge shows less than 2 MPa, return to the surface and refill before diving again.

Is certification required to use this product?

While certification is not required for shallow use, it is strongly recommended that all users receive proper instruction and certification from an accredited diving training agency. Improper use may lead to serious injury or death.

Can I use this product in cold water?

This product is designed for use in waters with temperatures above 10°C (50°F). Do not use in colder conditions.

Can I travel with this product?

Yes. Due to high-pressure regulations, cylinders must be empty and detached from the respirator when traveling by air. Always check with your airline’s policy beforehand.

What kind of air can I fill the tank with?

Only fill this tank with compressed air that meets human respiratory standards (EN12021). Do not use oxygen or other gases, as they may damage the internal system and pose safety risks.

What other precautions should I take before diving?

Before each dive, inspect the tank for any signs of damage or leaks and confirm it is fully pressurized. Do not use the product if it appears damaged or malfunctioning.

Never dive alone. Always dive with a partner to ensure safe operation.

Users over the age of 60 must obtain medical clearance from a doctor prior to use. This product is not suitable for pregnant individuals or those with medical conditions that make diving unsafe.

How often does the tank need servicing?

Have the product serviced annually by a professional. The gas cylinder requires a hydrostatic test every 5 years and should undergo visual inspection at least once a year.

How long are these devices can be used?

The use time is determined by the breathing pattern of the individual and the model of the cylinder.

For example:
1、S300 Series:About 6-10 minutes;

2、S400 / S400Plus Series:About 12-16 minutes;

How long can you stay underwater with a mini scuba tank?

mini scuba tank is the gas cylinder that you can fill yourself that allows you to breathe up to 30 minutes!

How often should I service or maintain the Mini Scuba Tank?

Regular maintenance is key to preserving the performance and durability of your Mini Scuba Tank. We advise following the maintenance schedule outlined in the user manual to ensure optimal condition. Additionally, it is recommended to have the tank inspected and serviced by a qualified professional every two years. By prioritizing maintenance, you can enjoy the lasting performance and reliability of your Mini Scuba Tank.

Is the Mini Scuba Tank safe to use?

Absolutely! The Mini Scuba Tank is designed to meet rigorous safety standards for diving pressure equipment. It has successfully passed multiple tests and obtained certifications such as CE and DOT. These certifications ensure that the Mini Scuba Tank meets the necessary safety requirements and is of high quality.However, it’s important to follow the safety guidelines and user manual provided by to ensure proper and safe usage of the product.

What are the conditions for using diving tank?

Before using this product, It is strongly recommended that you be trained or certified by a recognized certification body in scuba diving technology. 

What are the imperative safety instructions to follow?

– Never block your breathing whether it is going up or going down
– Never descend if you feel a sensation of discomfort in the ears, nose or eyes
– Never rise quickly (never faster than small air bubbles)
– Check your pressure gauge very regularly
– Never use the bottle on the surface when the needle of its pressure gauge is in the red zone.
It is also very important to explain these basic rules to anyone using the product.

What is the ultimate depth of the equipment?

This product is suitable for recreational diving gas source within 10 meters. Do not try to use it as a gas source in deeper waters.

What to pay attention to when using this product?

Inflate the product before use and check the product for damage or leakage. Never use products that are damaged, leaking, or showing signs of performance failure.The maximum canning pressure of this product is 3000PSI, and it can’t be used for gases containing more than 40% oxygen. Please use clean and dry compressed air.