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.

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 5244

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

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

DFRobot SEN0209

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 5450

Compact current sensor based on TMR technology, enabling precise measurements up to 20 A with minimal energy loss. Thanks to a wide 1 MHz bandwidth, galvanic isolation and interference immunity, it is perfect for applications requiring fast response and high accuracy. Pololu 5304

The MQ-9 sensor allows the measurement of gas concentrations such as carbon monoxide, propane and methane. Sensor measuring range: 10 - 10,000 ppm

Motion sensing module based on the STMicroelectronics IIS2DULPX 3-axis accelerometer, offering selectable measurement ranges from ±2 g to ±16 g and an output data rate of up to 800 Hz. The sensor supports motion, free-fall, tap, orientation, step, and tilt detection, while an additional QVAR channel enables capacitive sensing. Communication is provided via I2C, and two Qwiic connectors simplify solderless integration. Soldered 333363

ACS711EX Current Sensor Carrier -15.5A to +15.5A

Crowtail – BMP280 Barometer Sensor 2.0 is a compact digital sensor for measuring temperature, atmospheric pressure, and altitude, using the I2C interface. Intended for use in weather projects, mobile environmental systems, and consumer electronics.

Expansion board for BBC micro:bit designed for measuring environmental parameters and controlling devices based on sensor readings. Equipped with a BME280 temperature, pressure and humidity sensor, a real-time clock, two 1 A outputs, a servo output, piezo buzzer and ZIP LEDs. It can be powered by 3 AA batteries or through a 2.1 mm DC jack and also includes a solar panel input for charging rechargeable batteries. Kitronik 5697

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 200 mV/A and 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 (~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 5442

This module can be applied to intellectual robot, obstacle avoidance car, counter device in the pipeline, black and white lines tracking device. This infrared sensor contains two parts: an infrared transmitter and an infrared receiver. 

Temperature and humidity module, -40C to +125C, 0 - 99.9% RH, AOSONG, RoHS

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

This precision barometric pressure and temperature sensor is ideal for environmental applications. Its low noise floor allows for detection of elevation changes down to approximately 1 cm and offers a relative accuracy of ±0.4 Pa. It supports I2C and SPI interfaces for easy integration with microcontrollers. The pre-assembled module includes a built-in 3.3V regulator, logic level conversion, and STEMMA QT connectors. Adafruit 6407

Force-Sensing Resistor - 0.5" Circle

Force-Sensing Resistor - 0.2" Circle

Current measurement module using the galvanically isolated Allegro ACS37030LMYATR-040B3 sensor. A combination of Hall-effect sensing and an inductive coil provides DC to 5 MHz measurement bandwidth, a ±40 A range, and a typical response time of 40 ns. The larger carrier board facilitates high-current connections. Pololu 5698