Portable Diving Series
S400 1.0L Mini Scuba Tank
S400 1.0L Mini Scuba Tank
4.87 / 5.0
(30) 30 reseñas totales
No se pudo cargar la disponibilidad de retiro
- 30-Day Returns
- One-Year Warranty
- 24/7 Chat Support
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).
Specifications
Specifications
Model: S400
Volume: 1.0 L
Working pressure: 200 bar / 3000 psi
Dimensions: 36 cm x 8.9 cm
Weight: 2.33 kg
Cylinder material: 6061 Aluminum
Regulator: Constant pressure
Safety Guidelines
Safety Guidelines
Before purchasing or using any SMACO device, you must read and fully understand our User Manual & Safety Guidelines.
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S400 1.0L Mini Scuba Tank
Breathe Easy
The fixed pressure gauge provides constant visibility of air levels while the regulator delivers smooth, controlled airflow.
Pressure + Corrosion Resistant
Crafted from aviation-grade aluminum and reinforced with a protective oxide film for corrosion resistance and long-lasting safety.
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.
Air supply for every scenario.
Whether you’re plugged in or off the grid, SMACO makes it easy to refill your tank anywhere.
-
01
Transfer air from a
standard tank.The S-01 8mm Refill Adapter connects to a larger air supply for quick top-offs.
-
02
Refill quickly with an
electric pump.The Heap 1 Air Compressor runs on a 12V car battery or standard outlet.
-
03
Pump manually
when off-grid.The High Pressure Hand Pump is fully portable; refills for a 0.5L cylinder take about 20-30 minutes.
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.
- 5 stars: 27 (90%)
- 4 stars: 2 (7%)
- 3 stars: 1 (3%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Fast delivery - best quality!
S400 1.0L Mini Scuba Tank
the only little problem to me is the mouth rubber régulator feel little soft to bite...but by the way its great device
S400 1.0L Mini Scuba Tank
Very well made. A miniature scuba tank that is machined and outfitted with quality equipment. Looking forward to using it for pool maintenance underwater.
Works well
Last about 8 to 10 minutes it's really fun. I use it as a pool toy in the pool. I'm not scooper cert...
Lo único malo es que para comprimir el aire requerido con esa bomba cuesta DEMACIADO trabajo 🥵…. Cu...
this works really well I just wish it lasted more than 15 minutes - seems pricey for what it is
This tank is perfect is lobstering in the Florida Keys because you're not supposed to dive deeper th...
This thing is awesome! First scuba tank. Just wanted a small one to have some fun in the pool. This ...
My family and I go scuba driving sometimes. I recently bought this on Amazon, and really like it. Th...
I have to say I was nervous when I handled the tank, but when it was filled with my scuba tank and used, I love it. It's enough wait to help keep me down, so I don't need weights on me. I'm happy to have this on our trips!
This tank truly delivers on its promise of providing more than 10 minutes of breath without any prob...
Takes some time to inflate if you don't have a compressor laying around, but for the price point it'...
This product works well I was able to dive and work underwater easily. What I like the most is the f...
This diving cylinder offers impressive dive time; I got around 17 minutes at 20 feet. The 6061 aviat...
I have to say I was nervous when I handled the tank, but when it was filled with my scuba tank and u...
The S400 diving cylinder delivers on its promises. With a substantial diving time of 15-20 minutes u...
My roommates thought this was absolutely hilarious! I just got some flippers to go with and just ha.
if they made the tank bigger it could be the same under time an ez pumping to refill
I am combining this with an Apollo bio filter for scuba, to make sure that no aerial contaminants or...
I bought this for my husband for Christmas and he loves it. He says it's great because there is no l...
I cant believe you can get a working scuba tank/regulator these days for 220 dollars. I got the gx E...
It comes with a nice mouth piece on the regulator. It has a nice sleeve for the tank to fit in secur...
Way to assemble and no leaks. Easy to fill at my own air station with the 8mm attachment.
Good product
It came inside a protective box with carrying case. Parts were separated, you need to assemble them.
Fun scuba tank for sigh seeing under water, this is a great unit for sigh seeing for about 10-20 min...
It look so shiny that I don't want to scratch it, lol Is exactly size I was looking to play with my d...