This Hall effect switch, magnet included, is ideal for applications that call for accurate, dependable detection of position, movement or the presence of a magnetic field. Powered from 5 to 30VDC, it has an NPN output and a compact M12 x 30 mm body. Perfect for automation systems and industrial applications, it performs well across a wide range of operating conditions.

Module capable of measuring heart rate using an LED and a photodetector. Power supply: 5Vdc.

Very small module based on the HTU21D digital temperature and humidity sensor with I²C interface

Small breakout board built around the tiny INMP441 omnidirectional MEMS microphone

Proximity sensor made up of an LM393 voltage comparator chip, an infrared transmitter and receiver, a trimmer to set the sensitivity, a digital output (0 and 1) and two status LEDs for power and output signal

Compact laser receiver module designed to accurately detect the presence of a laser beam. With dimensions of 1.52 cm * 2.22 cm and powered at 5V, it provides a high logic output when hit by the laser beam and a low output when no beam is detected. Ideal for security, tracking and object-detection applications.

Very small breakout based on the BH1750FVI ambient light sensor

Analogue sensor with a light-dependent resistor and a 3-pin output connector, 2.54 mm pitch.

This compact board, combined with two level sensors and a water pump (not included), automatically controls the water level in a tank, cistern, etc

Made of stainless steel and fitted with a float, it is used to detect the level of a liquid inside a tank and can switch on a pump, a warning lamp, an alarm or another device