The sun doesn't warn you when it turns from friend to foe. That's why they've created an ankle bracelet that measures UV radiation in real time and emits a beep when you reach the safe limit. A discreet wearable that turns your ankle into a solar sentinel, ideal for those who forget to apply sunscreen or lose track of time while lying on the towel.
Integrated UV sensor and screen-free audio alert 🎵
The device uses a calibrated photodiode to measure the UV index and a low-power microcontroller that processes the data every few seconds. When the accumulated exposure exceeds the customizable threshold, it activates a small piezoelectric speaker. It doesn't need an internet connection or an app: it works autonomously with a button battery that lasts for several seasons. The bracelet is made of hypoallergenic silicone and the sensor is sealed against sweat and sand.
The ultimate beach poser: an alarm on your ankle 😎
Now, besides keeping an eye on your towel so it doesn't get stolen, you'll have to put up with your own ankle beeping like a microwave when you've been in the sun for ten minutes. Perfect for looking like a cyborg from AliExpress in front of the lifeguard. And if you're embarrassed, you can always pretend it's a prison bracelet and you've escaped from juvie. But hey, your skin will thank you.