Quartz Crystal Oscillator 8 MHz

The module has two outputs: analog A0 and digital D0
Digital output D0 - signal 0 appears or 1 depending on the threshold setting
The threshold is set with the potentiometer
The sensor can be used for example:
Automatic watering for potted plants
With this module you will be able to measure the humidity of the soil, so that you will be able to control the humidity level of the soil of your plants
Characteristic:
Operation: 3.3V -5V
- Sensitivity adjustable by potentiometer
- Dual output mode: analog and digital
- Red LED - power indicator
- Green LED - indicator digital switching output
- PCB measurements: 3 x 1.5 cm
- Probe measurements: 6 x 3 cm

Also available with waterproof casing and 100cm cable and 200cm. DS18B20 Temperature Sensor TO-92 0.5ºC Precision 5V Integrated features:
- Device function: Temperature sensor
- Type of output: Digital
- Supply voltage: 3V to 5.5V
- Accuracy: ± 0.5ºC
- Temperature threshold: Programmable
- Operating temperature: -55ºC to + 125ºC
- Encapsulated: TO-92
- Supply current: 1.5mA

Flux Colophony Rosin Core 40g features:
Flux rosin, solid resin, neutral ph for a correct electronic welding.
- They do not cause corrosion of non-ferrous metals
- Does not cause short circuits
It melts with the temperature, spreading through the area to be welded and penetrating into the most difficult corners, cleans and prepares the surfaces and components to be welded, and facilitates the adhesion and fluidity of the tin, improving welding in electronics works.
Use a toothpick for the application. Do not apply in excess.
Security:
- Use in ventilated spaces. Do not inhale vapors that are released when welding
- Keep the pot tightly closed and out of the reach of children
- Do not eat. It is not toxic
- Rarely irritating to skin contact

LED Diode Assortment Kit 50x Red Green Yellow Blue White features:
  
- Lens color: Red, green, yellow, blue - diffuse, light white
- Size: 5 mm
- Operating current: 20mA
- Voltage (red) 1.8V-2.3V
- Voltage (green) 3.2V-3.4V
- Voltage (yellow) 1.8V-2.3V
- Voltage (blue) 3.0V-3.2V
- Voltage (white) 3.2V - 3.4V
- Anode (A): Positive (long leg): 17mm
- Cathode (K): Negative (shorter leg): 15 mm
- Operating temperature: -25ºC / 80ºC
- Welding temperature: + 260ºC
- Quantity: - 50 units
                  - 10x red
                  - 10x green
                  - 10x yellow
                  - 10x blue
                  - 10x white

Protoboard Breadboard 5x7cm features:
-PCB dimension: 5x7cm
-Hole diameter: 1mm
-Pitch: 2.54mm
-Bakelite with copper fields

40x Female Male 10cm features:
- Length: 10cm
- Quantity: 40 cables
- Compatible with 2.54mm male connectors
- High quality and good working conditions
- Easy to install and use

WROOM-32 DEVKIT V1 is an ESP32 processor development board with WiFi and Bluetooth (BLE). It is much faster than the ESP8266 processor (NodeMCU and similar), and very easy to use, with 2x15 pins.

Small Probe Test for Multimeter Red Color features:
- 100% new and high quality
- Material: brass and plastic
- Powerful spring pulling the min hooks to grasp the small components firmly and avoid any short circuit
- Hands free to repair, you can connect the clips to multi-meter or DC POWER by a track
- It will help you to test IC or repair the cell phone and other mini electronic products more conveniently
- Length: 4.3 cm / 1.69 "
- Size of the brass hook: approximately 0.9mm x 0.4mm
- Red color