Qin Hongfei complained in her heart, and it was she who knocked on the door to sell the heart rate monitor.
There is a slight difference between a heartbeat tester and a heart rate test. The former is more likely to be used for lie detection. She doesn't know how an ordinary lie detector works, but the one she made has an accuracy rate of up to 90%.
When she was in another world, she applied for a patent for the thing she made and promoted it to places with professional needs in various cities. She made a lot of money from this. She didn't know how much, but it was enough for her to spend on scientific research for more than a year. It was very profitable!
For the sake of money, she asked, "Buy it?"
"It has many functions. It can test heart rate and lies. If you have elderly people at home with cardiovascular diseases, you can also get one! It has many effects and costs only 18,888. If you miss it, it will be gone." She typed the advertisement skillfully.
8121811: "Why do I feel like you're a liar?"
1128: "Be more confident and forget about your feelings. When did heart rate monitors become so convenient? Even at 18,800 or 108,800 yuan, there are people scrambling to get them, especially those from major hospitals."
Qin Hongfei took a look and immediately reflected on herself, and humbly asked for advice, "Brother, can I ask how much does this equipment cost in major hospitals?"
Seeing that she was still asking him for advice, 1128 was speechless and replied, "This kind of large equipment must have a minimum purchase price of 100,000 yuan, and the better ones cost hundreds of thousands. I said that if you want to fake it, you can't make it decent. The price is obviously fake."
Qin Hongfei learned her lesson and replied to the original poster, "Sorry, I don't understand the market. I'll change the price to 58,888. You deserve it!"
...
...
1128: “…”
Have you ever seen someone raising the price on the spot?
He did see it.
Still crazy!
Just when I was about to complain, the person 8121811 actually replied, "58,000, can it really test whether my girlfriend likes me? What if you lie to me?"
Qin Hongfei said, "Then you can only admit defeat."
Listen, is this human language?
But it's very practical.
Really, we can only admit defeat, what else can we do?
Qin Hongfei said sincerely, "I can make it first, you come over to take a look, and then we can trade if it's suitable! How do you think?"
8121811: "Okay, how many days?"
Qin Hongfei said quickly, "I'll give you a reply within three days."
After the temporary settlement, Qin Hongfei no longer wasted time. She logged off the Internet, went back to the repair shop, found some things she needed and put them in the repair box. Then she went back to Lao Qin's house, closed the door, and stayed in seclusion except for going to school and eating.
Aunt Qin couldn't help but get curious, so she went to her mother-in-law and said, "Mom, why does Hong Fei stay in the room all day? Don't be bored."
Grandma Qin also noticed that the child had been staying indoors for the past two days. However, she was busy in the fields, and she wished that every child could learn from Qin Hongfei, saving her troubles. "Has she finished her homework?"
Aunt Qin San replied, "Is it finished?"
Grandma Qin immediately went back to work without even turning her head, "Just finish writing, that's enough. If they finish writing, they can play around and do whatever they want. Why do you care so much about them?" The main thing is that even thinking about it may not be helpful. This child is very opinionated, and she could see that. After saying that, she continued to busy herself with her own things.
Qin Hongfei is busy, and Qin Fei is bored. She can only read scripts and read scripts... She can't go to find Hongfei because she will be stared at by her as if to ask how can you waste time like this. She feels guilty, very guilty.
I was really bored, so Qin Yun and the others dragged me out to play. It happened that the children from the Bai and Li families nearby were also playing, with a few hula hoops in their hands. The children from the Bai family looked at them greedily and wanted to borrow one to play with, but were refused on the grounds that they were afraid of breaking it. Then they saw the children from the Qin family coming out, and immediately forgot their disappointment and ran over to play with the children from the Qin family.
Back in the 1990s, she became rich through scientific research
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