Dipole Pentaband waterpoof Antenna

The BME280 is an environmental sensor (SEN0236) integrating a temperature sensor, a humidity sensor and a barometer. Powered from 3.3 V to 5 V with I2C and SPI interface. Measuring range: temperature: -40 °C to 85 °C, humidity: 0 %RH to 100 %RH, pressure: 300 hPa to 1100 hPa.

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,

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The INA219 breakout board can be powered by the 5V or 3V pin on your Arduino and communicates via I2C. If you want to sense an Direct Current (DC) with high accuracy and voltage too, we suggest you to use this sensor. I2C sensor can easily interfaced with arduino. It uses 4 pins only.

Encapsulated with water resistant stainless steel with sensor dimensions 5.5*50mm, cable length 200 cm. DS18B20 Probe 2m Submersible Temperature Sensor features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 °C to 125 °C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
      - Vcc red
      - Yellow digital output
- Inocidable steel
- Cable length: 2m  

The Grove - Air Quality Sensor v1.3 is designed to test indoor air quality. It can react to carbon monoxide, alcohol, acetone, paint thinner, formaldehyde and other slightly toxic gases. Compatible with 5V and 3.3V power supplies, it can work with Arduino and Raspberry Pi. It features long-term stability and low power consumption. It's the ideal choice for monitoring air quality in your projects.

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.

Sound detection module for Arduino projects, smart cars.
Sound Detection Sensor Module features:
- Adjustable High Sensitivity Acoustic Sensor
- Chip LM393
- Red LED indicator integrated
- Frequency range between 30 and 15000 Hz
- Power 4 ~ 6V
- Measures 32x16x10mm

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

MQ-7 Carbon Monoxide Sensor Module. The sensor detects the concentration of CO (carbon monoxide) and flammable gases. It has a goldpin connector raster 2.54 mm. It is powered by 5 V. It has digital and analogue outputs, which makes it compatible with most runtime modules including Arduino.