The mini detector has been developed, but due to limited time, only four have been made. They are derived from the detector made by Li Xin and have been further improved. They are even smaller than before. The whole thing is only the size of a woman's palm, very small.
The parts used are all better and brand new, not like Li Xin's which were disassembled from old radios. They are more refined and durable, and are also designed with straps.
Du Peng helped them tie up several detectors. The one made by Li Xin and tied around He Beichen's ankle looked the most special.
After making preparations, the five people pretended to be villagers going up the mountain to collect herbs and came to the area circled by Li Xin to search.
"Everyone be careful." He Beichen saw that there was no one around and whispered to a few people.
"yes!"
Then the few people dispersed and searched every inch of the area, not leaving out a single inch of land.
He Beichen remembered what Li Xin had told him before, and determined an approximate location in the forest, which was more accurate than the one drawn on the map. He carefully looked for the marks left by Li Xin.
After searching for a while, He Beichen found a special place on the ground. There was a small mushroom lying horizontally on the ground like an arrow, with the head of the mushroom pointing to a patch of grass.
It was just an ordinary mushroom, and it looked a little dry. It had been lying on the ground for two days and was a little lacking in water.
He Beichen was very sure that this was the mark left by Li Xin. Ordinary people would not care about this mushroom even if they saw it, and would not think it was special.
He looked at the bushes not far ahead and approached it carefully.
He Beichen walked slowly, moving forward step by step. After moving about four or five steps, the detector tied to his ankle made a sound.
"Here." He Beichen stopped and called out to the others around him.
As the engineers got closer, they heard the sound of the detector. They were very cautious and did not approach immediately, but instead tried to determine the exact location in this area.
After a while, they found a location where there were traces of excavation on the soil.
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