Precise sensor measuring UV radiation in the range of 240 to 370 nm, directly outputting UV index value (0-11) and hazard level (1-5). Thanks to I2C and UART interface support and compact design, it is ideal for environmental monitoring, health protection and optimization of photovoltaic installations. DFRobot SEN0636

Pololu 5242 with the ACS71240KEXBLT-050B3 chip is a compact current sensor module for precision measurement applications in the ±50 A range. With galvanic isolation, fast response to current changes, and short-circuit detection capability, it is used in power systems, automotive and industrial electronics, and embedded projects. It is ideal for measuring currents in both DC and AC circuits while ensuring safety and accuracy.

Educational module for measuring force in the range from 30 g to 1.5 kg, based on a flexible material that responds with a change in the analog signal. Thanks to its small thickness (0.4 mm), fast response and compatibility with Arduino, micro:bit and Unihiker, it is ideal for teaching physics, engineering and DIY projects. DFRobot SEN0616

A compact FIR temperature sensor enabling high-precision, non-contact measurement of objects. The medical version offers an accuracy of ±0.2°C over a range of 35 to 42°C, and in extended mode, it measures temperatures from -20°C to 100°C. The sensor communicates via I2C and is mounted on a STEMMA QT board with an integrated voltage regulator for easy integration with 3V and 5V microcontrollers. Adafruit 6403

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

Single-channel IR reflectance sensor using an infrared LED and phototransistor to detect changes in surface reflectivity, generating an analog output voltage from 0–VCC. Operates at 2.9–5.5 V, with an optimal sensing distance of ~5 mm (up to 30 mm max), adjustable IR emitter brightness, and a 4-pin JST SH connector, designed for line detection, edge detection, and obstacle sensing in robotics and automation projects. Pololu 4240

A modern current sensor combining the Hall effect with an inductive coil, which allows for precise measurements of both the DC and AC components up to 5 MHz. Thanks to its lightning-fast response time and low path resistance, it is perfect for motor control systems, power converters and protection systems. Pololu 5232

Reflectance sensor module with a single QTRX sensor and RC output, designed for detecting differences in surface reflectivity. Supply voltage 2.9–5.5V, low current consumption, version with side-entry JST-SH connector. Pololu 4340

Module with a 10-channel AS7341 sensor that detects light in various wavelength ranges (color detection). It communicates via the I2C interface. Adafruit 4698

The DRV5032 Hall Effect Magnetic Field Detection Module is an energy-efficient module for IoT projects, positioning systems, and battery-powered devices. With its digital output, compact design, and wide supply voltage range (1.65 to 5.5 V), it can be easily integrated into a variety of applications, offering magnet detection without the need for continuous power consumption. Adafruit 6051

Photoelectric liquid level sensor FS-IR02 in a set with a Gravity adapter. DFRobot SEN0205

Module with MLX90614-DCC sensor for non-contact temperature measurement in the range from -70℃ to 380℃. I2C communication. DFRobot SEN0206

Module with a digital temperature sensor PCT2075. It enables measurement in the range from -25 to 100°C with an accuracy of ±1°C. Communicates via I2C. Adafruit 4369

Temperature and humidity sensor module with DHT22 sensor (AM2302)

A module for the detection of gases and vapors of alcohols, including ethanol.

Module with a distance sensor with a range of up to 130 cm. It has a digital output that generates a pulse with a width proportional to the measured length. Pololu 4071

DFRobot Gravity analog light intensity module for Arduino and Raspberry Pi. DFRobot DFR0026

ACS724LLCTR-2P5AB current sensor module with a DC and AC measurement range from -2.5 to +2.5 A. It communicates via an analog interface. Pololu 4040

Module with digital barometer BMP388. It measures pressure in the range from 300 to 1250 hPa and communicates via I2C or SPI. Adafruit 3966

Earth humidity sensor with analogue output, supplied with 3.3 to 5.5 V voltage with Gravity connector. DFRobot SEN0193