What is rolling codes?
A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent replay attacks, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to ‘unlock’. Such systems are typical in garage door openers and keyless car entry systems.
What is a rolling codes jammer
315Mhz 433.92mhz 868mhz Rolling Codes Jammers
7800mha battery working 2~3 hours
Upto 3W output jamming range is 10~30m