Yes, they do. Just look at what Epinions said.

 

Laser Jammers: Save Yourself Thousands of Dollars!

Nov 14 '03

 

The Bottom Line Be careful!

 

I don't know how I ever drove without a laser jammer before... I drove around with the Valentine One, but one thing was still missing. Something that could save me from lidar. Lidar guns is probably the one thing other than instant-on radar that drivers fear most. Unlike radar, laser guns use a narrow 904nm beam of light to clock a car's speed. The bad part about lidar is that once an officer fires it at you, you're gone. It doesn't make a difference whether you have a detector that picks it up or not, you're clocked before you can do anything. Some may think that there's no escape from this clutch of evil, but yes... There is a way you can, but by no means is it cheap.

 

-Enter The Laser Jammer-

*Laser jammers are a lot like remote radar detectors. You install transponder modules on parts of the car such as on the grille or license plate on the front, and on the rear license plate. Then in the interior, you can have a module that will show you the works and tell you everything that's going on, or a measely button with a mute button and light. The way that a laser jammer works is by emitting very strong light from the LEDs in the transponders to "confuse" the laser gun, thus jamming it. You therefore get a warning and you are able to slow down. Cool concept, huh?

 

-What To Look For-

*Well, one thing that I find to be quite essential is a shut-down mutton, and not just a mute switch. When I'm hit by laser, I like being able to shut the system down completely once I get down to the legal speed. This makes it less suspicious for cops, and especially if you're living in a state where these babies are illegal. Other than that, I think interfaces that tell you what's going on such as those with the Escort ZR-3 and Bel Laserpro 904 are pretty nice. Let's move on to the LED transponders. Grille-mounted work the best since they are able to provide protection through the whole frontal side of the car. The front plate is the target of choice, but with the K40 Defuser Plus for example, if the officer targets another area, you've just lost your protection. Then, even though rear-attacks are rare, a rear-transponder proves to be nice. You can never be too careful, it only takes one ticket to spoil your day.

 

-Performance Measures-

*Here comes the tricky part. Just because you have a laser jammer that actually works (Anything except Rocky Mountain and FAJO) doesn't mean that you'll be 100% protected. For example, if you're using two transponders rather than one, you have a better chance of jamming the laser. Also, there's the company factor, each product is different. I chose Escort because of its intro with the Passport 8500 which shows a lot of "good" thinking. But some companies such as K40 have fallen back, I know people who use the K40 Defuser Plus because of the name, and have gotten pulled over for laser tickets before. It all just depends, you should do extensive research before buying a product. Try to buy newer ones since they would have more recent software and what not. However, I would stick to the big dogs such as Escort/Bel and Blinder. Companies that claim to jam such as Rocky Mountain are PURE JOKES.

 

-What Not To Buy-

*Rocky Mountain radar claims that all of their scrambler products can "scramble" the laser radar-band (Their stated mistake which shows how incompetent they are). Well, the Rocky Mountain products are said to work differently than the jammers that are out on the market. The jammers on the market jam laser by firing out strong LED lights out to the gun to confuse it (Interference of light waves). Rocky Mountain claims to jam laser by creating a "LED field" in front of the car, and disables laser that way. My friends, this is all physics. If light travels and hits another source of light, there can be distructive or constructive interference, but once the light leaves, it's back to its normal amplitude, frequency, wave length, etc... My golly gosh, what a cool idea that is! But it would only work if the laws of physics were repealed.

 

-In Conclusion-

*Choosing a laser jammer is some pretty serious business. Lidar guns are quite popular in the United States and in Europe. They are very lethal when you're hit without any protection, but you can protect yourself! You should seriously consider a jammer if lidar is used in your area (Even if RARELY like I encounter it). Remember, it just takes one ticket to ruin your day and drastically increase your insurance premiums and what not.

 

Some last things to consider... Yes...

 

*DO NOT buy Rocky Mountain products, they do not work.

 

*If laser jammers are illegal in your state, no sweat, just make sure that yours has a disabling switch so that cops won't get suspicious.

 

*Make sure that there are atleast two LED transponders in the front to provide sufficient jamming ability.

 

*Modules on the interior are a nice touch.

 

1. Do Laser Jammers really work?

2. What happens when the officer does not get a reading?

3. Shipping

An officer will target a car he thinks is speeding. An officer generally will target a car for up to 3 seconds and move to the next car. If the officer does not get a reading on your car there is nothing the officer can legally do. He could if he wanted pull out and wait for you to make a violation and pull you over for something else. However the officer is there for one purpose and that is to issue speeding tickets. It is rare for the officer to move just to ask you about your Jammer.