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

The MQ-7 sensor allows you to measure the concentration of carbon monoxide (carbon monoxide). The measuring range of the sensor is in the range of 10 - 10,000 ppm

Module with a 3-axis magnetometer BMM150. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020492

A modern current sensor with a measurement range of -40 A to +40 A, combining the Hall effect with an inductor, allows for precise measurements of both DC and AC components up to 5 MHz. Its lightning-fast response time and low path resistance make it ideal for motor control systems, power converters, and protection systems. Pololu 5234

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

The MQ-4 sensor allows methane concentration measurement. The measuring range of the sensor reaches up to 10,000 ppm and an analogue signal is obtained at the output.

Module with a SI1151 light sensor that can detect waves with a wide range of wavelengths: visible and infrared light. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020089

A modern current sensor with a measurement range of -40 A to +40 A, combining the Hall effect with an inductor, allows for precise measurements of both DC and AC components up to 5 MHz. Its lightning-fast response time and low path resistance make it ideal for motor control systems, power converters, and protection systems. Pololu 5231

The MQ-8 sensor allows the measurement of hydrogen concentration in the air. The measuring range of the sensor is in the range of 100 - 10,000 ppm.

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

Gravity: DS18B20 Temperature Sensor is a module with a temperature sensor compatible with Arduino boards. The module can be supplied with 3.3-5V voltage and measures the temperature in the range -55 ~ 125 ° C. DFRobot DFR0024

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

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

This soil moisture sensor uses a resistive measurement between two gold-plated probes. Corrosion resistance ensures long life and stable measurements. It works with the micro:bit and Arduino platforms, allowing for reading soil moisture levels as an analog signal. Adafruit 6362

Module with digital temperature sensor AS6212. It enables measurement in the range from –40°C to 125°C with an accuracy of 0.2°C. SparkFun SEN-18521

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

Ambient light sensor placed in a transparent hemisphere. It supports a detection range of 0 to 200 klx and communicates via the I2C interface. DFRobot SEN0390

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 5246

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 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 the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5457

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 the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5456