Some RFID is passive, and some is active. For example, my E-ZPass for the toll roads. It sits on my dash or mounts to my windshield. I can sail through the toll plazas at speed and it reads my pass and bills my account. It's got a battery inside with an expected 10 year life. What I really like about it is that it works here:RFID readers can barely read my card even if it's pressed directly against the reader. I've been looking at setting up rfid for shop access, I wanted something that I could just walk through the door, like i can just start my car with my key in the pocket. But car keys are active, and rfid is passive, and apparently it's nearly impossible to get the car key experience with rfid, I have to press a card against a reader.
I can't remember how old ours is. Gotta be similar.Mine is 13 years old and works just fine. Must have a Duracell inside....![]()
Agreed.ones with batteries can transmit. Those without need a hand held scanner. Kind of hard for someone to see how much cash you have. While driving…..not going to happen.
But lots of trollsWhat I really like - out West we have no toll roads. Lots of our roads have lumps and bumps but no tolls.