It can be tricky to nail the perfect balance of sun exposure to ensure you get your fill of vitamin D but don鈥檛 get burned. is a handy wristband with a gallium nitride UV sensor that detects the amount of UVA and UVB hitting your wrist and warns you when it鈥檚 time to go inside or cover up.
SunFriend has 11 skin sensitivity settings so you can customise it to your skin type. And, because it goes where you do, it senses all the UV that hits your skin including the rays bouncing off reflective surfaces like snow or sand.
The wristband is waterproof and comes in four colours: citrus orange, blue ocean, green spring and grey mist. Winners will receive their choice of colour, depending on availability.
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SunFriend has its origins as the winner of a . It was the brainchild of NASA physicist , who saw the opportunity to bring his expertise in sensors down from orbit. He is currently the principal investigator for TIMER, a thermal imaging instrument for a future mission to Europa, and previously worked on the composite infrared spectrometer instrument on the Cassini spacecraft orbiting Saturn.
Fill in our entry form for your chance to win. Be sure to put 鈥淪unFriend competition鈥� in your message.
Only subscribers and registered users are eligible to win, so be sure to log in or register before you enter. Registration is free and no purchase is necessary. The closing date for entries is 23.59 GMT on 28 August 2014. (Full terms and conditions are below.)
Terms and conditions
1. This competition is open to anyone aged 18 or over except residents of Australia, employees of Reed Business Information Limited and any company involved in the sponsorship of the competition.
2. Entry is open only to subscribers and registered users. Submit your entry, including your name and email address, using the entry form.
3. Every entrant will be entered into a draw to win one of 12 SunFriend wristbands. Prizes cannot be exchanged.
4. Only one entry is permitted per person. No purchase is necessary.
5. 快猫短视频 shall not be responsible for technical errors in telecommunication networks, internet access or otherwise, preventing entry at this website.
6. Entries must be received by 23.59 GMT on 28 August 2014. Entries made after this time will not be counted.
7. Every effort will be made to notify the winner by email by 1 October 2014.
8. Submitting your entry constitutes your consent for us to use your entry, name and photos (if applicable) for editorial or publicity purposes.
9. Reed Business Information Limited reserves the right to ask for proof of age and evidence to verify the identity of an entrant at any time, and may use any channels and methods available to carry out checks of any details provided. Entrants may only enter the competition in their own name. Entries submitted through agents or third parties will not be accepted.
10. You hereby warrant that your entry will not infringe the intellectual property, privacy or any other rights of any third party, and will not contain anything which is libellous, defamatory, obscene, indecent, harassing or threatening.
11. Winners鈥� names are available by writing to 鈥淪unFriend competition鈥�, Lacon House, 84 Theobald鈥檚 Road, London WC1X 8NS
12. 快猫短视频 reserves the right to change or withdraw the competition and/or prize at any time.
13. By entering the competition, entrants are deemed to have accepted these terms and conditions.
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