Great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes. Adafruit 2748

The HTC-2 is a reliable and functional weather station with temperature and humidity measurement, clock, alarm, and memory for min/max values, ideal for home or office use.

This sensor is a carrier/breakout board for ST’s VL53L0X laser-ranging sensor, which measures the range to a target object up to 2 m away.

This sensor utilizes advanced signal processing technology by using a powerful chip (XKC-Y25-T12V) with high-speed operation capacity to achieve non-contact liquid level detection; suitable for hazardous applications: detecting toxic substances and all kinds of liquid in an airtight container under high pressure. SEN0204

Compact current sensor based on TMR technology, enabling precise measurements up to 30 A with minimal energy losses. Thanks to a wide 1 MHz bandwidth, galvanic isolation and interference immunity, it is perfect for applications requiring fast response and high accuracy. Pololu 5317

Crowtail – 3-Axis Digital Accelerometer (±16g) is a digital MEMS accelerometer with a wide measurement range and high sensitivity, based on the ADXL345 chip. Intended for projects requiring motion, orientation, and acceleration detection in robotics, safety systems, and interactive devices.

Module with 6-axis IMU LSM6DSO sensor, which combines a 3-axis accelerometer and gyroscope, as well as a 9kB FIFO buffer and event handling functions. Communicates via I2C or SPI. SparkFun SEN-18020

Suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc. SEN0207

Module with 1 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 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4341

Module with PIR sensor HC-SR501. It can detect movement up to 7 meters with a detection angle of 120 degrees

Module with pressure and temperature sensor BMP280. It allows to read the atmospheric pressure in the range from 300 to 1100 hPa and communicates via the I2C interface. Pimoroni PIM411

Doppler radar module with 24GHz transceiver. It allows for precise distance measurement and motion detection. The board communicates via the UART interface. Seeed Studio 101990883

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and its low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5452

Module with environmental sensors for Raspberry Pi Pico. It allows you to measure temperature, humidity, air quality pressure and color detection. SB Components 22366

Wireless sensor with LoRaWAN network communication. Dedicated to industrial long-distance data acquisition with a wide measurement range of temperature from -40°C to 85°C and humidity from 0 to 100% RH. Seeed Studio 114992867

Crowtail-Microwave Sensor 2.0 is a motion sensor module based on the Doppler effect, designed for integration with Arduino and Crowduino platforms. Thanks to its resistance to environmental factors, it is suitable for industrial automation, security systems and smart installations.

LPS35HW waterproof barometer module. It can measure pressure from 260 to 1260 hPa and communicates via I2C or SPI. Adafruit 4258

Module with a TDS sensor that allows you to measure the total content of solids dissolved in water. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020753

ToF distance sensor (Time of flight) with a range of up to 2.5 m. The module is powered with the voltage of 3.3 V and communicates via the I2C interface. DFRobot SEN0430

Current-to-voltage converter module designed for devices with a current signal output. It allows linear conversion of current signals from 0 to 25 mA into voltage signals from 0 to 3 V. DFRrobot SEN0262