The Escort ZR4 Laser Shifter is a member of the Laser Shifter laser jammer family manufactured by Escort and introduced in 2008. The Laser Shifter series also includes the ZR3.
The Escort ZR4 Laser Shifter is obsolete and will no longer jam the newest police laser/LIDAR guns, like Dragon Technology’s Digital Ally Laser Ally. Escort still sells the ZR4 Laser Shifter but, again, it cannot jam all police laser guns. Newer brands, such as Blinder and Laser Interceptor, do offer laser jammers that will jam all of the newest laser/LIDAR guns.
See Also: 2013 Laser Jammer Tests
Read More: The Laser Jammer Buyer’s Guide