Mobile Charger 5V 3A 3100mA Micro USB 15W

High sensitivity to Ammonia (NH3), Nitrogen oxides (NOx), Alcohol, Sulphides, Benzene (C6H6), CO2, smoke and other harmful gases.  The MQ-135 sensor is to sensible for other gasses in the air so that is not possible to get good values for CO2 from it.
MQ-135 Air Quality Sensor features:
- Main chip: MQ-135 natural gas 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:
   10ppm - 300ppm NH3
   10ppm - 1000ppm Benzene
   10ppm - 300ppm Alcohol
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

Connectors BLS01 Female/Female 1 Pin RoHS Single Row pack 20pcs features:
- Number of connections: 1 in a single row
- Type: female / female
- RoHS standard

- The DHT22 humidity sensor is presented in a plastic body ideal for mounting on a panel or similar. It uses a capacitive sensor that returns a digital signal with the measurement - This sensor, unlike DHT11, is capable of measuring negative temperature values ​​and measures tenths of a degree
Characteristic:
- Operating voltage: 3 to 5.5 VDC - Humidity measurement range: 0-100% ± 2% accuracy
- Temperature measurement range: -40ºC to 80ºC ± 0.5º accuracy
- Maximum sampling rate: 2 seconds
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
Write texts on the OLED 0.96 '' screen
- Read the measurements of the temperature / humidity sensor DHT22 / AM2302 on a 0.96 '' OLED screen
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Buzzer alarm to convert electrical signals into intermittent acoustic signals in robotic devices and Arduino projects

A buzzer with a pulsating tone generator, after connecting the supply voltage (DC) in the range of 3V -24V, the buzzer generates an intermittent signal with a frequency of approximately 1 Hz. Application example: as a reverse alarm system for a car. 

Jack connectors 2.1mm inside and 5.5mm outside to power devices such as LED strips, CCTV (Cameras), Arduino. Female DC Power Connector Jack 2.1x5.5mm features:
- Ideal for connecting without welding
- It has two screws in the tip for positive and negative cable screwdriver

Dupont Connector 2.54mm Female features:
- Connector for soldering or crimping
- Lot 100 units
- Ideal for your projects electronic, arduino, but can also be used with other microcontrollers

40x Cables Female-Male 20cm features:
-Length: 20cm
-Quantity: 40 cables
-Connectors have male and female header contacts at either end
-Compatible with female connectors 2,54mm
-High quality and good working conditions
-Easy to install and use

64GB Class 10 MicroSD memory card with adapter features:
- 64GB capacity
- Class 10
- MicroSD dimensions 11mm x 15mm x 1mm
- FAT32 format
- Operating temperature -25 ° C to 85 ° C
- Storage temperature -40 ° C to 85 ° C
- Voltage 3.3 - Includes adapter