Zee Gravity SPG Module Capsule 52mm
Zee Gravity SPG Module Capsule 52mm - White is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Currently, we offer shipping within the United Arab Emirates and other Middle Eastern countries. However, we are actively working to expand our shipping services to cover international destinations.
We generally process orders from Monday to Friday and strive to ship them within 24 hours. Shipments within Dubai typically arrive within 1-2 business days, while deliveries to other Emirates generally take 2-3 days. Deliveries to Middle Eastern countries usually take 4 to 5 working days, excluding customs clearance. Please be aware that delays or variations in delivery times may occur due to shipping courier delays, unforeseeable events, or extreme weather conditions. Read More.
Returns and Refunds
Returns and Refunds
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Reed More
This Zee Gravity 52mm submersible pressure gauge (SPG) features a copper beryllium Bourdon tube mechanism with silver welding for enhanced durability and performance.
This precision mechanism is engineered to accurately measure and display the remaining air pressure in a scuba tank. It is specifically chosen for its reliability, high accuracy, and ability to maintain calibration even after shocks or impacts—making it ideal for demanding diving environments.

Bourdon Tube Mechanism
The Bourdon tube is a curved, flattened metal tube—commonly made from copper beryllium in scuba SPGs—that serves as a highly sensitive pressure sensor.
When pressurized, the tube naturally tends to straighten due to the internal fluid pressure. This movement is mechanically translated into a precise reading on the gauge face.
Its specific curvature and dimensions are engineered to accurately measure pressure changes within a defined range, ensuring reliable performance even in demanding underwater conditions.

Copper Beryllium Alloy
Copper beryllium is a high-strength, durable alloy ideal for handling the pressure fluctuations and physical impacts commonly experienced during diving.
It also offers outstanding corrosion resistance, making it especially well-suited for the harsh underwater environment.
Why Use a Copper Beryllium Bourdon Tube in SPGs?
Accuracy:
The Bourdon tube mechanism delivers a high level of precision in pressure measurement, essential for safe diving.
Reliability:
Known for its consistent performance, the mechanism maintains accurate readings over time, even with regular use.
Durability:
Copper beryllium is a tough, resilient alloy, making the Bourdon tube resistant to impact and pressure fluctuations—ideal for demanding dive environments.
Corrosion Resistance:
The alloy’s exceptional resistance to saltwater corrosion ensures long-term functionality and reduced maintenance.
Calibration Stability:
The combination of Bourdon tube design and copper beryllium's properties allows the gauge to retain calibration, even after exposure to shocks or heavy impacts—a crucial feature for a safety-critical device like an SPG.
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We are an authorized dealer of Zee Gravity.
Zee Gravity offers a 1-year warranty on SPGs, valid exclusively for the original purchaser. At its sole discretion, Zee Gravity will repair or replace any product found to be defective in materials or workmanship under this warranty.
Please note that the warranty does not cover unauthorized repairs, accidental damage, or negligence.
For any warranty-related inquiries, feel free to contact us at info@divegearzone.com.
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