Protect your car, deter thieves with Catsiren - the ultimate defense against catalytic converter theft.
Fits all cars, trucks, and SUVs
Adjustable sensitivity: 3, 5, and 10 feet
30 second installation
USB-C charging cable included
Low battery warning chirp
False alarm prevention technology
Thieves Can Steal Your Catalytic Converter in Broad Daylight!
When armed, the CatSiren continuously monitors the motion around your catalytic converter using Doppler Radar technology. If a thief attempts to crawl under your car to saw off your catalytic converter, the CatSiren creates a 130 decibel alarm noise. To prevent false alarms from pets, pests and debris, the CatSiren emits a brief warning signal before activating the full alarm sequence.
The CatSiren is controlled in a convenient and familiar way. When leaving your car, arm your CatSiren with the included remote control. When you return, disarm the CatSiren with the remote control. Sleep easy knowing that no one is attempting to steal your catalytic converter.
Identify vehicle catalytic converter. The catalytic converter is located on the vehicle exhaust system between the engine and the muffler.
Having located the catalytic converter, attach the CatSiren to the nearest flat, obstruction-free area of the underside of the vehicle. CatSiren should be mounted 6-8 inches away from the catalytic converter and exhaust pipe to prevent device overheating.
Once the alarm has been mounted, arm the device by pressing the Arm button on the wireless remote.
Before driving, disarm the alarm by pressing the Disarm button.
Check out our FAQ page for more information.
What Our Users are Saying
I have a 2008 Toyota Prius and I spent $2000 replacing the catalytic converter after it was stolen from my driveway. I installed a CatSiren to protect my investment.
I live in a safe quiet suburban neighborhood. It took 5 minutes for thieves to cut the catalytic converter off of my 1998 Toyota 4Runner when it was parked in my driveway. I bought a CatSiren to prevent it from happening again.
My neighbor recently had her catalytic converter stolen and I don’t want it to happen to me. The Cat Siren gives me peace of mind when I’m sleeping.