Flow sensors

The meter built on the basis of a water rotor and a Hall effect sensor
Please note this is not a Accuracy. Pulse rate varies slightly depending on flow rate, fluid pressure, and sensor orientation. Water Flow Sensor 1-30l /Min YF-S201 features:
- Working voltage range: DC 5 ~ 18 V
- Allow pressure: water pressure below 1.75Mpa
- Accuracy (flow-pulse output): ± 1 ~ 30 l / min
- Use temperature: ‰ ¤ 80 ° C
- Load capacity: ‰ ¤ 10 mA (5Vdc)
- Operating humidity: 35% ~ 90% RH (frost free)
- Temperature: -25 ~ + 80 ° C
- Outlet diameter: 1/2 "
- Red wire: positive supply
- Wire Black: negative power supply
- Yellow Cable: signal output
- Color: black
- Size: 6.2x3.6x3.4 cm

ELECFREAKS Smart Science IoT Kit is developed on the basis of loT:Bit, a new breakout board compatible with ultrasonic sensor, dust sensor, light sensor and water level sensor, including RTC Timing and WIFI module. It can build the scene such as air quality monitoring, environmental noise detection, environmental quality monitoring station, automatic watering detection, self-defence monitoring station and more.

With this 32 in 1 construction kit you can build all 32 options or develop your imagination by building your own project.

Note: the micro:bit board is not included, you can buy it separately.

The RETRO Arcade for Education is the first large-screen arcade device with high resolution. Children can use it to fuel their creativity by easily creating their games while having fun playing.

With the Smart City Kit you will learn more about the IoT, the software, and the possibilities of future city scenes that are able to be built through it. You will be able to build topics such as smart parking, transport network, river level monitoring...