Module with 7 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4347

Set with a measuring module and a probe for measuring electrical conductivity. It allows you to measure the salinity of water and soil. It has a Gravity analog output interface. DFRobot DFR0300

Thermal camera module for Raspberry Pi offering precise temperature detection with 80x62 pixel resolution. It enables easy integration into industrial applications and control systems. It is ideal for temperature monitoring, thermal analysis and security systems. Waveshare Thermal-90 Camera HAT

A sensitive sensor of the magnetic field, operating in the range of ± 50 microtesels, which generates a rectangular signal proportional to the strength of the field, which facilitates its integration with microcontrollers. It is distinguished by high temperature stability and tenderness, which makes it ideal for precise magnetic field measurements in applications requiring reliability. Sparkfun Sen-25531

TMAG5273 Hall sensor module dedicated to detecting the presence, strength and direction of a magnetic field in three dimensions. It uses communication via the I2C interface and Qwiic connectors. SparkFun SEN-23880

A miniature lidar proximity sensor that detects objects up to 15 cm away, regardless of color, transparency, or lighting. It generates a digital signal (0 V on detection), operates in the 3-5.5 V range, draws only 30 mA, and supports sleep mode via the ENABLE pin. Ideal for robotics, automation, and contactless interfaces, it offers a fast response time (142 Hz), switching hysteresis, and a compact housing with an indicator LED. Pololu 5464

A precise barometric pressure and temperature sensor, ideal for altimetry and environmental applications. It can detect changes in height as small as 1.5 cm and offers high relative accuracy of ±6 Pa. It supports I2C and SPI interfaces for flexible integration with microcontrollers. The pre-assembled module with STEMMA QT connectors facilitates quick connection in drones, wearable devices, and IoT projects. Adafruit 6411

Indoor air quality measurement module, combining two high-end Sensirion sensors – SCD41 and SEN55. It offers a comprehensive set of measurements, including CO2 concentration, volatile organic compounds (VOC), suspended dust (PM1.0, PM2.5, PM4, PM10), as well as temperature and relative humidity. SparkFun SEN-25200

The Iduino SE052 module with a DHT11 sensor enables easy integration with microcontrollers for measuring temperature and humidity. Ideal for weather stations, data loggers, and home automation, it offers stable and long-term performance across a wide range of applications.

Temperature sensor based on a DS18B20 chip replacement. It is enclosed in a waterproof measuring probe. It has a 2 m cable and communicates via a 1-Wire interface

Laser radar based on cwToF technology and metasurface lenses, offering depth maps and IR images in 160x60 pixel resolution and a wide viewing angle of 108°x40°. Thanks to its solid-state construction, range up to 4.5 m and resistance to strong lighting (up to 60 Klux), it is ideal for applications such as robotics, obstacle avoidance systems, access control and volume measurement. DFRobot DFR1177

LJ8A3-2-Z/EX is a reliable inductive proximity sensor for detecting metal objects in industrial automation, operating in the voltage range of 10V-36V DC. It features a detection range of up to 2 mm and a compact housing with a diameter of 8 mm, which allows easy installation in limited space, and the NPN NO output facilitates integration with control systems.

Module with a 3-axis magnetometer based on the BMM150 chip. It communicates via an I2C or SPI interface. Waveshare BMM150 3-Axis Magnetometer Sensor

Single-channel reflectance sensor from the QTR-MD series, 8 mm wide, featuring an RC output and a side-entry connector. Designed for line detection, surface contrast measurement, and edge detection in mobile robotics and automation systems. Pololu 4140

Laser scanner using ToF technology. It takes measurements at 2 to 8 revolutions per second and has a range of up to 8 m. It communicates via a UART interface. Waveshare D200 LiDAR Kit

The AM2301A temperature and humidity sensor is designed to measure in a variety of environmental conditions. It offers a measuring range of temperature from -40 to +80 °C and humidity from 0 to 100%RH. AM2301A

Laser scanner using ToF technology. It takes measurements at up to 10 revolutions per second and has a range of up to 25 m. Waveshare DTOF LIDAR STL27L

Miniature TOF distance sensor with embedded MCU and ranging algorithm, measurement range 0.02 - 7.8 m, accuracy ±4 cm, UART 3.3 V TTL or I2C interface, supply voltage 4.3 - 5.2 V. Waveshare TOF Laser Range Sensor Mini

Small 10 DoF IMU module with 3-axis gyroscope and accelerometer (LSM6DSO), 3-axis magnetometer (LIS3MDL) and barometer (LPS22DF). It is equipped with an I2C interface, a voltage stabilizer and a voltage level converter. Pololu 2863

A miniature lidar proximity sensor that detects objects up to 5 cm away, regardless of color, transparency, or lighting. It generates a digital signal (0 V on detection), operates in the 3-5.5 V range, draws only 30 mA, and supports sleep mode via the ENABLE pin. Ideal for robotics, automation, and contactless interfaces, it offers a fast response time (142 Hz), switching hysteresis, and a compact housing with an indicator LED. Pololu 5460