Optical liquid level sensor module with switching function with NPN output.

Module with bi-directional current sensor based on the INA226 system. It allows you to measure current and power, works with a voltage of 0-36 V. It has an I2C interface.

TF Mini LiDAR is a one-way rangefinder that is based on ToF (Time of Flight) technology. It consists of high quality optical and electrical devices that provide stability, high sensitivity and precision. Sparkfun SEN-14786

Laser scanner (Lidar) 360 degrees with a measurement frequency of 10 Hz and 16,000 measurements / second. Range up to 25m, measuring error at 1%. Sparkfun SEN-15045

Module with 16 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 50 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4256

Ultrasonic distance sensor (sonar) with a measuring range from 50 cm to 10 m. It allows you to read data through one of three interfaces: variable width pulse, analog output or UART TTL interface. DFRobot SEN0271

Versatile 9DOF sensor with accelerometer, magnetometer and gyroscope, supporting I²C and SPI interfaces, enabling precise measurement of motion, orientation and temperature, with easy integration with Arduino and microcontrollers. Adafruit 3387

Gravity: UART Infrared CO2 Sensor is a high precision CO2 sensor. It uses the UART interface for communication. It allows to measure CO2 content in the air in the range of 0 ... 50000ppm. DFRobot SEN0220

Flexible pressure sensor with dimensions of 400x15 mm. Designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0299

URM37 V3.2 Ultrasonic Sensor

A small module with QRE1113GR reflective sensor. The sensor is made of IR LED and phototransistor IR. With its help, it is possible to determine the brightness of the position over which it is located, it can be used, for example, to detect a black line in Linefollower robots. SparkFun ROB-09453

ROB-09454 - QRE1113 Line Sensor Breakout - Digital

Evaluation board with an IR thermometer MLX90614. The sensor is connected to the ATmega328 microcontroller working at a voltage of 3.3 V with the Arduino bootloader loaded. SparkFun SEN-10740

Module with an analog TEMT6000 light intensity sensor. The output voltage increases with increasing intensity of the incident light. The sensor is powered by 5 V. SparkFun BOB-08688

A simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. SEN-10264

Distance Measuring Sensor Unit; Measuring distance: 100 to 550 cm; Analog output type, Sharp, RoHS

Acceleration measurement module with ADXL335 3-axis analog accelerometer system. The module is supplied with the voltage from 1.8 to 3.6 V. SparkFun SEN-09269

QTR-1RC Reflectance Sensor (2-Pack)

QTR-3RC Reflectance Sensor Array