We have seen many nice item finders, but if you want more options or more functions, the following GateKeeper wireless tracker may also be suitable for you.
The GateKeeper is a very functional Bluetooth-enabled wireless tracker and proximity tag that measures 20 x 36 x 5mm and weights a mere 4 grams. As shown in the images, the wireless tracker features ultra compact design, using its custom hole or included double-sided adhesive you can easily attach the smart tracker on your keychain, bag, laptop or other items you want to track. Using built-in Bluetooth 4.0 technology the proximity tag is able to pair with your iPhone or Android smartphone in order that you can locate your values within a range of 100 feet. Moreover, its proximity sensor works with your computer. When you approach your computer, the wireless tracker unlocks it, and locks it when you leave. After the break, check out the following demo video.
At present the team of GateKeeper is raising fund at Kickstarter. Pledging $30 will let you own the proximity tag. If you’re interested, jump to Kickstarter official site for more details.