Keychain Laser Pointers
If you are looking for a useful tool for your keys, keychain laser pointers may be what you need in order to make the most of your keys. Many people carry around an assortment of tools on their keys, some of which are not useful if you end up stranded without electricity. As many keychain laser pointers come equipped with flashlight units, these small, lightweight accessories are suitable for carrying around at all times, while providing the functionality that is desired.
In addition for being useful in an emergency, keychain laser pointers are also suitable for use in the office or at home. At home, they can be used as pet toys, giving you something you can use to play with your cat or dog. As many animals enjoy chasing laser pointers, it is an effective way to play without having to go out of your way to do so. For the office, keychain laser pointers are suitable for presentations if you do not have a dedicated laser pointer available. However, if you are intending on using your keychain laser pointers for presentations, you will need to purchase a higher quality pointer, as many of the cheaper pointers found in keychains have a very short range on the laser pointer. In the cases where the range is longer, the beam is extremely narrow, which would not be suitable for presentations.
As a general rule, keychain laser pointers come in red. If you want to have a high end laser pointer with a green, blue or yellow beam, you will need to special order your keychain laser pointers, or find a seller that specializes in that type of beam. The primary reason for this is that the technology for red laser pointers has been around for much longer than the technology for green, blue and yellow lasers. Yellow lasers are among the most expensive, having only been recently released for public use.
No matter what type of keychain laser pointers you purchase, there are several things that you will want to keep in mind. First, laser pointers of any strength can cause permanent damage to the retina of the eye. Because of this, it is vital that you do not point the beam at any person or animal. The damage done to the retinas from lasers is not reversible. As well, you will need to be aware of how strong your pointer is, as some areas do not allow beams over a certain mW to be used. The standard allowed strength of laser is 5mW and weaker.