A module with a high precision temperature sensor based on the MCP9808 chip. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5027

Vibrating sensor module, Plug & Play, omni-directional, designed for switching over low-current circuits. DFRobot DFR0027

A moisture sensor specially adapted to work with the Kitronik Greenhouse Kit for the BBC micro:bit. It allows monitoring of moisture in the soil. It can be programmed using any editor for the micro:bit. Kitronik 56107

Module with a 3-axis magnetic field sensor LIS3MDL. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4479

Deflection sensor 114 mm long. The sensor resistance changes with the bend angle. At the end, the sensor has a 2-pin connector with a pitch of 2.54 mm. SparkFun SEN-08606

Module with OTP-538U non-contact temperature sensor. The board is equipped with a Grove connector and has analog outputs. Seeed Studio 101020062

Small form factor IR camera capable of tracking up to four heat/IR sources, can be controlled with Arduino, AVR via I2C interface. SEN0158

Adafruit Universal Thermocouple Amplifier MAX31856 is an amplifier module for thermocouples. It was based on the MAX31856 chip. The module is fitted with K, J, N, R, S, T, E or B thermocouples. The SPI interface is used for communication. Adafruit 3263

The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5241

A small module with a PIR motion sensor. It allows detecting movement within a maximum range of 6 meters (default up to 3 meters). The measuring angle is 120 degrees. The module has a connector in accordance with the Grove standard. Seeed Studio 101020020

Module with 13 QTR 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 4153

Module with light sensor - LS06-S phototransistor. The board is equipped with a Grove connector and has an analog output. Seeed Studio 101020173

Heart rate measurement module compatible with Arduino and Raspberry Pi (Gravity: Heart Rate Monitor Sensor For Arduino). It uses PPG technique, which in a simple and cheap way is able to measure the changing volume of blood. DFRobot SEN0203

Module with a 3-axis MMA7660FC accelerometer with a measuring range up to ± 1.5g. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020039

Module with a VOC sensor (volatile organic compounds) made in MEMS technology. It allows gas detection in the range of 5 to 500 ppm and has an analog output. DFRobot SEN0566

Module with pressure and temperature sensor BMP280. The board is equipped with a Grove connector and communicates via the I2C or SPI interface. Seeed Studio 101020192

Module with a temperature and humidity sensor based on the HTU31 system. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4832

Module with PIR S16-L221D motion sensor. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020353

Module with a reflection sensor (line sensor) RS-06WD. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020172