MAX30100 Pulse Oximeter and Heart-Rate Sensor Module

GY-291 ADXL345 Accelerometer Module. An electronic module identified by its model and function.

GY-521 module featuring the MPU6050 accelerometer and gyroscope for motion-sensing and orientation projects.

Two-wire temperature sensor with a 1-metre lead. The listing mentions both PT100 and K-type; confirm the sensor type before selecting an interface.

• Working voltage 5V
• Output format: Digital switching output (0 and 1), and analog voltage output AO
• Potentiometer adjust the sensitivity
• Uses a wide voltage LM393 comparator
• Comparator output signal clean waveform is good, driving ability, over 15mA
• Anti-oxidation, anti-conductivity, with long use time
• With bolt holes for easy installation
• Small board PCB size: 3.2cm x 1.4cm