Speed camera stealth jammer teardown - with schematic

Summary

The transcript describes a fake car radar jammer purchased on eBay. It has a plastic shell, solar panel, lithium battery, and microcontroller but no actual RF circuitry to block speed cameras. The device simply flashes an LED. These scams are common online, often sold as fake jammers or alarms. The video explores the cheap design which lacks proper charge regulation. It serves as a warning about online scams, though the teardown provides an interesting look inside the vacant gadget.

Takeaways

• 😟 The product being discussed is a fake car 'stealth jammer' that claims to block speed cameras but does not actually work.
• 📺 These fake jammers are commonly sold on eBay as car alarms or detection blockers.
• 🔬 Inside there is no RF circuitry, just basic components like a solar panel, lithium battery and microcontroller.
• 🤥 The claims about blocking signals and invisibility are completely false and misleading.
• 💸 If you buy and use one of these thinking it works, you'll likely get expensive fines.
• 🔨 The case seems to be held together by friction and glue rather than screws.
• ⚡ There is no current limiting on the USB charging circuit, risking damage.
• 😒 Overall it's a cheap fake product designed to scam people out of money.
• 🧐 You need awareness about online scams as the internet is full of them.
• 🤼‍♂️ It's still an interesting device to take apart and reverse engineer.

Q & A

What product is being reviewed in the video?

A ZR car stealth jammer that is claimed to block speed cameras, traffic light cameras, and parking sensors.

Where did the person in the video buy the product from?

They bought it cheaply off of eBay instead of the official source.

What does the product actually do?

It only flashes an LED light. It does not actually jam any signals or block cameras.

Why does the person say the product could lead to expensive fines?

Because it does not actually block cameras as claimed, so you could still get caught speeding or running red lights.

What components are inside the device?

A solar panel, lithium battery, LED, microcontroller, and some basic components like resistors and diodes. No RF circuitry.

How does the device sense when it is dark?

Using a voltage divider circuit connected to the solar panel to detect low light levels.

How is the battery charged?

Either from the solar panel or via the USB port, without any current limiting.

Why is a resistor needed for the USB charging?

To prevent damage or overcharging the lithium battery due to excessive current.

What happens when the device is plugged in and turned on?

The LED just stays lit continuously.

Why does the person say these devices are common online scams?

They make inflated claims about blocking signals but actually do nothing, just flashing an LED light.