Kit Seeed Grove 40 sensors for Arduino

Arduino compatible IR motion detector with a detection range of 3 meters.
One sensor electric pyro, which can detect infrared radiation levels - detect a change in the average IR levels of your detection zone.
Ideal for projects with ARDUINO, PIC, AVR, STM32.
Characteristic:
- Operating voltage: 4.5V- 20V
- Consumption in idle state:

Microwave radar presence and motion sensor using FMCW technology, compatible with Arduino and Raspberry Pi.

Detects changes in the sensor angle and returns to the digital value. 5x SW-520D Vibration Metal Tilt Sensor features:
- Contact resistance:

This detection module that allows you to detect your heart rate and blood oxygen level from your Arduino project. You can monitor your blood oxygen level yourself to avoid going to the doctor or pharmacy on purpose. Simply press the sensor with your finger and wait for the reading of hemoglobin (Spo2), heart rate and Perfusion Index (PI%). It is a solution as an integrated heart rate sensor and pulse oximetry, which includes two LEDs, a photodetector and is optimized for analog low noise optics.

With this small and simple device, you can control your blood oxygen level yourself to avoid going to the doctor or pharmacy on purpose. Simply insert your finger and wait for the reading of haemoglobin (Spo2), heart rate and Perfusion Index (PI%). The heart rate is also graphically displayed. 

You can rotate the screen to see it in its 4 positions. High precision device, with low power consumption and automatic shutdown. 

MQ-8 Hydrogen Gas Sensor Module features:
- Main chip: MQ-8 methane sensor and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Quick response features:
- Detection concentration:
  100ppm- 10000ppm hydrogen H2
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

ZigBee temperature and humidity sensor provides accurate temperature and humidity measurements and stores this data in memory for one year. Broken down into days with hours, months and a year.

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

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch. It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

This module includes the component BME280 that is translated into a digital signal.
The equipment uses the two I2C and SPI interfaces. The BME280 does not allow the module to be used as an altimeter as opposed to its successor BMP280.
Its 5-pin straight connector allows easy connection to other electronic boards. BME280 Digital Temperature Humidity Barometric Pressure Module features:
- Interfaces:
- I2C (up to 3.4 MHz)
- SPI (up to 10 MHz)
- Supply voltage: 1.8-5VDC
- Module operating range:
- Temperature: -40ºC to + 85ºC
- Humidity: 0-100%
- Pressure: 300-1100 hPa
- Resolution of the measures:
- Temperature: 0.01ºC
- Humidity: 0.008%
- Pressure: 0. 18Pa
- Accuracy of the measures:
- Temperature: +/>