T8 R2 50cm Spindle Kit with Bearing Support, Nut and Coupler

The Carbon Monoxide sensor is a low-power digital gas sensor which has a CCS811 sensor and an 8-bit microcontroller, contains an analog-digital converter so that it can detect indoor air quality which can detect monoxide carbon (CO) and a wide range of volatile organic compounds (VOCs). It is a sensor designed to monitor air quality inside personal devices such as mobile devices and smart watches, with low power consumption that can be used with battery

The 28BYJ-48 has everything you need to start using stepper motors in your project
A stepper motor converts digital impulses into small steps of movement in one direction The engine also comes with a ULN2003 engine controller card
Can control two DC motors or a bipolar stepper motor with a maximum amperage of up to 500 mA
Equipped with state indicator LEDs A, B, C, D 5V Stepper Motor 28BYJ-48 + ULN2003 Driver Boat features:
- Engine model: 28BYJ-48
- Phases engine: 4
- Operating voltage: 5V
- Frequency: 100 Hz
- Operating current: 200mA
- Max Power: 20W
- Winding resistance: 70 ohm
- Angle per step: 5,625º
- Steps per round: 64
- Torque: 0.3 Kgr / cm
- Speed: 1900 rpm

Kit Peltier Cell 12V TEC1 12706 Fan Thermal Paste DIY features:
- Mounting kit
- Ceramic Peltier Cell 12V TEC1-12706
- Heatsink 12x10x25mm (hot side)
- Heatsink 60x40x25mm
- Color black or silver
- Thermal insulation 70x65mm for cell
- Fan 12V 90x90x25mm with grille
- Thermal paste 0.5g
- Screws - Peltier effect cell model TEC1-12706, 12v, max. 60w and 6A, with a temperature difference between their faces of up to 67ºC
- Max Power: 60w
- Voltage: 12v
- Max Voltage: 15.2v
- Max Current: 6A
- Temperature Variation:

Momentary Switch Push Button Red N/O 7mm features:
- Momentary pushbutton N/O (normally open)
- Red button
- Dimensions approx. 7 mm x 27 mm
- Recessed with nut and washer
- Load current (supported): 1A to 230V / 2A to 125V
- Drill to embed: 7 mm +/- 0.2
- Operating temperature: -55º to +85ºC

Ideal for your electronic projects, arduino, but can also be used with other microcontrollers. Breadboard Power Supply Protoboard 830/400 Points MB102 features:
- Input voltage supports up to 12V
- Selectable 3.3V or 5V
- USB input or standard DC 2.1 x5.5mm connector
- Maximum current 700mA
- It fits perfectly on the MB-102 breadboard feeding the two lateral buses
- Weight: 15 gr. (approx.) Compatible only with MB-102 type plates

Male 40 Pin Header 1x40 features: Type: Male, Insertion position: Vertical, Separation between pins: 2.54mm

Limit Switch with Lever 

5x Pushbutton B3F Green Key Omron Electronica Arduino Prototype Switch 12 features:
- 5x Pushbuttons B3F Omron
- 5x Keys
- Maximum current: 50mA
- Tension DC: 24V
- Operating force: 1.27N
- Switch terminals - Weldable
- Contact: SPST-NO
- Contact resistance: 100M Ohm
- Type of action: Superficial
- Measures: 12x12x7.3mm