After writing the challenge book, Ye Qing asked the master of ingenuity to make a few metal detectors.

The principle of a metal detector consists of two systems, a magnetic field coil and a sensor.

When the coil is energized, a magnetic field is generated, and metal enters the magnetic field, which causes a change in the magnetic field. Sensors can sound an alarm when they sense a change in the magnetic field.

The metal detector is used to detect the pipeline, and Ye Qing does not need to explore all along the line, as long as he confirms that there is a pipeline leading to the direction of the sea.

The remaining products are derivative technology products of magnetogenerators, which use magnetogenerators to interfere with the characteristics of damaged electronic products, and are specially built jammers for surveillance cameras.

A wallet-sized jammer with low working parameters, pressing the power switch, can interfere with the normal operation of the camera.

If you have watched those modern spy films, you will be familiar with those camera jamming devices with all kinds of tricks.

In some blockbusters, a jammer the size of a peanut can disrupt the normal operation of several cameras.

That's a science fiction movie......

The monitoring equipment is wired, unless the ladder is moved and the jammer is glued to the line, otherwise it is expected to be remotely interfered with, before the breakthrough of energy technology, it is tantamount to a fool's dream.

Then again, there are several sets of security measures for the monitoring of some key places, such as corner-to-corner shooting, and electromagnetic shielding of lines and bodies. With the kung fu of sticking the jammer, it is better to directly pick up the vise and cut the wire.

Or chewing gum, or shining a laser on the lens.

When the sun set in the West Mountain, the entire Longxitan bay was sprinkled with a layer of golden afterglow, Ye Qing drove his old buddy, the Wuling Light with the advertising paper torn up, towards the large chemical factory in the Tongxi District, which mainly produced plastic raw materials.

In the van, Ye Qing was wearing sunglasses and a hat, and there were two giant laborers sitting in the back seat.

After walking a few miles along Huanhai Avenue, the car turned into a fork in the road and walked for more than ten minutes. In Ye Qing's field of vision, a factory with various reactors and cooling towers was located in a large field.

――――Jinmei Chemical Co., Ltd.!

This company ranks 27th in the list of monster factories, with total assets of more than 600 million.

There are intricate country concrete roads in the fields, and the road in front of the factory is a wide four-way lane, with greenery and vegetation.

The courtyard wall of the factory is very high, and the security guards at the gate are two young men with dark eyes, wearing security uniforms, and wearing a thick gold necklace with little fingers around their necks.

Seeing Ye Qing's van parked at the door, the two security guards threw suspicious glances from time to time.

Hung up the gear, Ye Qing drove away from the factory gate.

Following the country road, the van drove to the side of the factory.

While driving, Ye Qingtong kept scanning the fence with his glasses.

If this is the company, Ye Qing believes that they will definitely install several cameras to monitor the situation near the sewage pipes.

It's just that the whole factory went around in a circle, and Ye Qing didn't find any traces of cameras on the fence, and the infrared sirens used to prevent climbing found a lot.

"Isn't it this?" Ye Qing held his chin and turned his gaze a little puzzled.

Suddenly, a small circle was marked on the tree on one side, and then the circle expanded along with the scene, and a detailed explanation was displayed on the side.

[DISCOVER 6MM FOCAL LENGTH, INFRARED CAMERA.] 】

As the scene in the circle expanded, Ye Qing found that on this poplar tree, there was an obviously carefully camouflaged one, leaving only an inconspicuous camera for surveillance.

The cable of the camera has been buried in the trunk of the tree, which is to carve a groove in the tree first, and when the cable is glued in, it will not be long before the tree will heal itself and wrap the cable inside.

The branches in the front of the camera are visibly trimmed to ensure that the camera is directed to the field ahead.

Subsequently, Ye Qing found the same camera on another poplar tree.

Both cameras were aimed at the field, and Ye Qing was not in the capture range of the picture.

Behind the van is a chemical company, not some spy organization or secret research institute. This unreasonable disguise proves that there must be a ghost in this factory.

When night fell, Ye Qing parked the van in the distance, and then quietly touched under the poplar tree equipped with a camera according to the prompt of the glasses.

Pressing the start switch, Ye Qing snapped the jammer on the tree, followed by the second one.

After imitating the jammer, two huge laborers immediately took a shield-like metal detector and checked along the monitoring range.

Inside the factory monitoring center of Jinmei Chemical.

In addition to the normal factory surveillance footage, there are four monitors in a small and secluded room.

Two monitors the pressurization equipment room of the non-negative pressure pipe network, and two monitors the sewage pipes buried in the field.

Now the two outdoor night vision cameras have turned into Panda brand black-and-white TVs with no signal, and the screen is full of snowflakes.

There was only one person in the monitoring room, and when he found that the screen was spent, his first reaction was to check the line behind the detour monitor.

There were no problems with a few line interfaces, so he reported the situation to the security guard duty room at the door, and asked the security guard to go under the two trees and check the camera.

The two security guards were drinking beer when they received the news and scolded and went to grab a flashlight.

By the side of the field, two huge laborers had already walked for miles following the sound of the metal detector's whistle.

The two detectors in their hands are not the kind of things that sell land on the Internet, and they will call the police when they encounter an iron nail.

Detectors revealed anomalous metal reflections that resembled iron pipes at a depth of one meter above the ground. And this abnormal reflection line points directly to the direction of the sea in Longxi Beach.

Two security guards, who were flashlights and walked a little shaky, scolded and ran under the poplar tree to check.

Two black shadows with bulging muscles and exaggerated physiques quietly circled behind them.

When they were covered by a pair of thick hands like a fan, they grabbed their hairs like a farmer's weed.

The two security guards whimpered violently, and the three souls and six spirits were almost frightened out of the sky.

They tried their best to turn back, but each other's arms were as strong as excavators.

In the midst of their fierce struggle, they faintly heard a young voice saying that they had stripped them naked and tied them to a tree.

The strong, large hand covering their mouths was released, and there was no time to say for mercy. They were slapped in the face.

"Smack~Slap~"

After two dull sounds, their faces seemed to have evaporated from the world, and their brains seemed to have exploded into a cannonball, and their eyes were full of golden points of light.

By the time their thoughts returned to their brains, they had formed a large font and were attached to the trunk of a one-meter-tall tree.

The two security guards were naked, and it was the torn strips of cloth that bound them.

The night is like a dark monster, silently looking down on the earth.

In the golden eyes, the two security guards caught a pair of exaggerated strong shadows, slowly leaving like a jungle king.

"Save ...... Fate, ......" (To be continued.) )