This pen-shaped alcohol tester can help you keep your driver’s license. Because of it’s pen-like appearance you can keep it in your shirt pocket at anytime. When you exit the pub you just have to turn it on, blow, and then wait. If the LED turns green, you can frive your car, but if it turns red you’d better call a taxi. It does have one inconvenient: it only works with the UK alcohol limit.

The UV detector is made of a UV sensitive material. It changes color so it can indicate ‘weak’, ‘medium’ or ‘strong’ UV radiation.

A good point of this gadget is also the price. It costs £16.95(about the price of one round at my local) and you can find it at Urban Junkie.