Digital + Analog Sound Detection Module LM386 Audio Recognition Voice-Controlled Switch Microphone Sensor Module

$57.00

Import Alternative/M18 Cylindrical Photoelectric Switch NPN Diffuse Reflection Through-Beam Sensor PNP Normally Open DC24

$26.50

Liquid Level Sensor Liquid Level Detection Water Level Monitoring Sensor Module with Microcontroller Example Code Provided

$57.60

Ultrasonic Liquid Level Sensor for Container Detection, High-Precision Liquid Water Level Monitoring, Waterproof Obstacle Avoidance Module, Non-Contact

$123.19

MAX30100/MAX30102 SpO2 Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

$6.29

Temperature and Humidity Transmitter Industrial Grade 485 High Sensitivity High Humidity Environments Digital Display Hygrometer Greenhouse Sensor

$50.00

Long-Range Cylindrical M18 Photoelectric Switch, Diffuse Reflective and Retroreflective, NPN/PNP Normally Open/Closed Inductive Sensor

$26.50

Fast Shipping Digital + Analog Sound Detection Module 86 Audio Recognition Voice Control Switch Microphone Sensor

$82.31

Infrared Liquid Level Sensor, Liquid Surface Detection Module, Water Level Sensing Monitor Switch, High Precision Corrosion Resistant

$114.40

High-Sensitivity Sound Sensor Module Microphone/Audio Detection Controller Switch

$1.70

Through-Beam Matrix Fiber Optic Sensor Amplifier for Area Detection, Infrared Light Grid Curtain, and Photoelectric Sensors

$30.25

Luoshida Q14 Micro Square Laser Diffuse Reflection Photoelectric Switch Sensor Through-Beam Inductor Visible Light

$83.60