Mouse Blocker Prox 12Volt High Powered Ultrasonic Mouse and Rodent Deterrent with with an Eviction Mode and Dual Strobing LEDs for Your Vehicle

This product worked wonders, easy to install and we got instant gratification the first night, no visible signs of rats in the engine bay.

Bought 2 on 3/19. Installed a few days later. Haven’t had a single mouse 🐁 in either of our 2 vehicles. I was concerned about power draw on the batteries but even if we allow our vehicles to sit in the 3-5 days they start with no sign of low voltage. Totally impressed

I live in the jungle, a rainforest mice,rats,& shrews just love making house under the hood of your car & truck. Wire manufacturers had petroleum-based insulation in the past now it's soy. O yes it is edible. Hadn't had any problems since. installation is straightforward.

I have had issues with squirrels, mice, rats, you name it, chewing up the wiring on my vehicles. I purchased 1 Mouse Blocker Pro 12v to test out. No more damage, no paw prints in the dust, it appeared to be working, so I purchased a second Mouse Blocker Pro 12v, and installed it a few months ago. Those both came in the same packaging, which is what you see in the right side of the photo's I have attached. I bought a 3rd one about a week ago. The 3rd arrived, but on the box has Mouse Blocker ProX, the packaging is the same, except the the printing on the outside is different, and the printing on the actual device is different. The enclosed product installation and operation guide is the same as the previous 2. I installed the 3rd Mouse Blocker ProX, the documentation and description states the device shutoff when the vehicle is started, the voltage is low, and has the same install instructions. I installed it, and found there are some differences in the Mouse Blocker ProX, I had to do my own research and testing to figure out why the device I received didn't work like the previous 2. The manufacturer appears to have updated the device, or it is a new one, and does not operate like the previous 2 I purchased. Both turn on/off, have 3 levels of sound, and connect to the battery the same. The ProX however, does not shut off when the vehicle is started, and I noticed when I was installing it, if you move the ProX, it appeared to shutoff. At first I thought the unit I had was defective, but some testing I discovered if the device is moved, it shuts off, I had use a camera under the hood, start the vehicle, and start driving, it shut off, which explains why the device did not shutoff when I started the vehicle. I wonder how many are being returned due to the outdated documentation? If you purchase one, be aware there appear to be 2 models, the Mouse Blocker Pro, and the Mouse Blocker ProX. The documentation they send is for the Mouse Blocker Pro, not the ProX. The box on the ProX does not mention it shuts off if the voltage drops below 11.5v, and since it lacks documentation I am not sure if it does, or does not, I may wake up one day to a dead battery, ,which is when I will find out if it shuts off below 11.5v. The Mouse Blocker ProX does not shut off when the vehicle is started, I appears if the device detects movement, it shuts off. I am assuming this as it's my observation from watching it when I move the vehicle from point A to point B. It appears to start working again when the vehicle is no longer moving. I deducted a star due to the lack of documentation on the ProX, is it an update, a different version, they have different applications, like an electric vehicle, or can they be used on both combustion and electric vehicles? Only time will tell if it is as effective as the previous purchases.

We have tried so many different things to keep the rats out of our car engine and doing damage to the wires, etc. THIS IS THE ONLY THING THAT HAS WORKED! It sits in our car all the time now and no more rats. I am so thankful to have finally found something that lives up to its claims.

I purchased the mouse blocker to protect my vehicle's wiring from rodent damage. I installed the unit under the hood where my vehicle had wires chewed previously and set on the highest setting per instructions. I thought the mouse blocker was repelling rodents until about a week later. I found that rodents had returned, chewed through many wires and included the power wires for the mouse blocker that were located about 3 inches away. Now I have thousands of dollars in repairs. Do not recommend!

I have 2 of these mounted on the firewall, 1 in my ‘07 Sequoia and 1 in my ‘18 Rav4. They work well. However, they will drain the battery down after a few days on the high setting. I’ve killed hundreds of mice with snap traps over the years around my vehicles and home. I have a mouse blocker pro in my boat that is powered by an ext cord. They work well. Just when I think I’ve got them all, I find more in the traps. It’s hard to keep up. Bucket traps with water don’t work in the winter. Lol. I also undercoat my vehicles with NHOU that has a peppermint additive to it. That stuff works amazing at keeping them out of our vehicles. The mouse blocker helps keep them out of the engine bay. But I’ve found chewed paper inside the car a couple times even with the blocker on high and in between coatings. I’m a Master Toyota technician and I’ve repaired hundreds of cars. I’ve seen the worst you can imagine. These measures help dramatically, but nothing will stop them from getting in except killing them in traps. It’s an ongoing battle that never ends.

So far so good. I'm using this in combination with the Vamoose Sent Packets & Spray. Rodents are really stubborn up here. Had to rewire two cars twice each. Costly! So far it's been a month now and no return calls from the mice and rats.

I bought the mains powered one which I stuck under my bonnet the next morning the mice had chewed through the cable, I phoned the supplier and asked if he'd take it back ,he said no I'll send you some special tape to fix it and all will be OK, the following two mornings and all the tape had gone, so I binned the whole thing, absolutely useless.

My car was killed due to rats chewing wires in the engine. I fitted this and now, 6 weeks later, the same has happened again. I can only presume that this device has not deterred the rats from entering the engine compartment.