Why “Waterproof” Hardware Needs More Than a Marketing Claim

When people see the word “waterproof” on a product, they often think it means one simple thing: water cannot get inside. But for engineers, product designers, and testing labs, waterproofing is not that simple. A device may survive light rain but fail under water jets. It may handle splashing water but fail after immersion. It may pass one manual spray test but fail when the same condition is repeated in a controlled laboratory setup. That is why waterproof performance needs to be tested, not...