mmWave Radar - Human Presence Detection Sensor (9 Meters)

M18 Inductive Proximity Sensor features:
- Inductive proximity sensor detection switch LJ18A3-8-Z / BX
- NPN DC6-36V
- A Often used for 3D printer bed leveling
- Cylindrical cable type DC 3 cable type (black, brown, blue)
- Inductive sensor type
- NPN NO (Normal Open )
- Detecting distance 8mm
- DC supply voltage 6-36V
- Current output 300mA
- Response frequency 0.5KHz
- Detects iron / aluminum - Operating temperature -25 ° C to + 70 ° C (Non-freezing condition)
- Head diameter 18 mm
- Size 6.9 x 2cm
- Cable length 90cm

NTC thermistor - with a negative temperature coefficient, i.e. an increase in temperature causes a decrease in resistance.   Thermistor NTC 5.0K 5% MF52A epoxy resin coating resistor features:

Size: 3mm
Rated resistance: R25 = 5.0k
B value 25/85 = 3950°K
Rated power: ‰¤ 50mW
Tolerance:± 5%
Operating temperature: from -40°C to +125°C  Tinned steel wire 25mm

The SparkFun weather meter kit is a set of basic mechanical components for building a weather station. This kit represents the three basic elements of weather measurement: wind speed, wind direction and precipitation. Whether you are a farmer, a professional meteorologist or a weather enthusiast, building your own weather station can be a truly rewarding project. However, when it comes to measuring the weather, you need some pretty specialised sensors.

Sparkfun MyoWare 2.0 Muscle Sensor Development Kit  is an all-in-one electromyography (EMG) sensor kit compatible with Arduino. Just snap on a MyoWare 2.0 Shield, add some EMG sensor pads, connect the sensor to a muscle group and flex! The kit also includes the SparkFun RedBoard Plus is an Arduino compatible board and the MyoWare 2.0 Arduino Shield to connect the MyoWare® 2.0 sensor via a cable to the Arduino.

The SNZB-02D sensor will monitor temperature and humidity in real time remotely in the application or on the display, with a range of up to 120 metres. The sensor has a built-in intelligent Swiss hygrometer sensor that provides more precise readings, maintaining an accuracy of ±0.2°C/±0.4°F in temperature and ±2% relative humidity in humidity, updating the readings every 5 seconds.

Inductive Proximity Sensor PL-05P PNP Limit Switch is used for controlling machinery as part of a control system, as a safety interlock, or to count objects passing a point. Inductive proximity sensor PL-05P 5mm with PNP output features:
- Manufacturer: Fotek,
- Square Type,
- Sensing distance: 5mm,
- Operating voltage: 10 - 30 VDC,
- Response frequency: 800Hz,
- Output method: PNP, 150mA load,
- Hysteresis: <10% of sensing distance,
- Protection degree: IP67,
- Working temperature/Hum: -20ºC - +80ºC, 35% - 90% RH,
- Body dimension: 30.5x17.9x10.2mm (LxWxH),
- Mounting Method: Flush,
- Sensing Direction: Horizontal,
- Materia Housing: High-impact plastic,
- Screw hole: 3.2mm, Pitch: 10.5mm,

Easily convert water level to analog signal
The analog output signal can be read directly on the Arduino board
Characteristic:
- Operating voltage: 3.3V -5 V
- Consumption: less than 20 mA - Sensor type: Analog
- Operating temperature: 10º C -30º C
- Detection area: 40 mm x 16 mm
- Dimensions: 60 mm x 20 mm

Inductive Proximity Sensor PL-05N NPN Limit Switch is used for controlling machinery as part of a control system, as a safety interlock, or to count objects passing a point. Inductive proximity sensor PL-05N 5mm with NPN output features:
- Manufacturer: Fotek,
- Square Type,
- Sensing distance: 5mm,
- Operating voltage: 10 - 30 VDC,
- Response frequency: 800Hz,
- Output method: NPN, 150mA load,
- Hysteresis: <10% of sensing distance,
- Protection degree: IP67,
- Working temperature/Hum: -20ºC - +80ºC, 35% - 90% RH,
- Body dimension: 30.5x17.9x10.2mm (LxWxH),
- Mounting Method: Flush,
- Sensing Direction: Horizontal,
- Materia Housing: High-impact plastic,
- Screw hole: 3.2mm, Pitch: 10.5mm,

Sensor used for measuring of the object acceleration in 3 axis in the range of either ±2g, ±4g or ±8g. It is powered with 1.95V to 3.6V. What sets this module apart is its user-friendliness, compatible size and low power consumption. it comes with headers attached

This air purifier uses a HEPA filter to remove viruses, bacteria, mould, dander, etc. safely. The dehumidifier regulates humidity in the bathroom, kitchen, etc. Filters up to 99.5% of dust, pollen, tobacco smoke, mould spores and pet dander. Keeps the environment clean.