Arduino Reed Switch Module Magnetron Magnetic Field Sensor KY-025

Tilt Switch Sensor Module for Arduino AVR PIC KEYES KY-020

Magnetic Hall Effect Sensor Module for Arduino Keyes KY-003

Tilt Switch Sensor Module for Arduino AVR PIC KEYES KY-020

Light Blocking Sensor Opto Interrupter Module Keyes KY-010 Arduino

MQ-2 Gas Sensor Module Smoke Hydrogen Butane LPG Methane Detector for Arduino

High Sensitivity Microphone Sensor Sound Detection For Arduino Module KY-037

KY-039 Finger Measuring Heartbeat Sensor Module Keyes for Arduino