Joke Collection Website - Public benefit messages - What is the principle of wireless water level controller?
What is the principle of wireless water level controller?
For example, DS207SW short message wireless water level controller, the principle is to judge whether the water level reaches the critical value. If the critical value of low water level is reached, the controller will control the pump house controller to start the water pump by sending short messages, otherwise, the controller will send short messages to control the pump house to stop drainage.
The principle of wireless transmission between DS207SW SMS wireless water level controllers is GPRS transmission, which is not limited by distance, weather and obstacles. As long as there is mobile signal coverage, it is within the coverage range of China Mobile Company's signal base station tower (that is, the mobile phone has a signal).
- Related articles
- Summary of safety construction work
- The transaction notice in the merchant service of Fujian Rural Credit Cooperative, the official account of WeChat WeChat, is not displayed.
- What should I do if I chase Scorpio and send her a message?
- Winter solstice copy material 4 1 sentence
- Pay tribute to firemen
- How long is the delivery time of household appliances in JD.COM?
- How to write an apology letter to the teacher?
- Where and how to set SMS?
- My wife always talks about my ex-girlfriend, which makes me very angry. I don't want to say it at all, but she says it every time. She lost her temper when it was ignored. I'm really fed up.
- Bluetooth headset reads the caller's name, SMS reminder!