Ultra-Small Elbow M4/M6 Photoelectric Switch Laser Through-Beam Sensor with Small Spot BJTL04 06 Micro Photoeye

$110.00

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

$71.00

LM386 Analog Sound Detection Sensor Microphone Capsule Audio Recognition Analysis Output Induction Module

$21.00

MAX30102 Heart Rate and Blood Oxygen Sensor Module for Pulse Monitoring, Compatible with Arduino Uno R3

$58.00

Visible Light Laser Infrared Light Reflective Through-Beam Mirror Reflection Photoelectric Switch Background Suppression Photoelectric Sensor

$28.00

DEXIKE Ultra-Thin Through-Beam Photoelectric Switch EX13A9EB Micro Sensor DX-E11N1/2 Infrared Induction

$80.00

Level Sensor, Sensor Module, Liquid Level Detection Sensor, Water Level Monitoring, Float-Type Level Switch

$105.00

HC-SR501 SR505 Human Infrared Induction Electronic Module Sensor Pyroelectric Induction Switch SR602

$3.05

MAX30100 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module Blood Oxygen Sensor Module

$6.50

High-Speed Infrared Liquid Level Sensor P-Level Liquid Surface Detection Module Water Level Sensing Monitoring Switch for Water Dispensers

$84.76

Diffuse Reflection Infrared Through-Beam Photoelectric Switch E3Z-D61 D62 D81 D82 R61 T61 Through-Beam Sensor

$27.00

Infrared Through-Beam Photoelectric Switch BZ-T12 Inductive Sensor HPJ-E21 HPJ-R21 Normally Open

$45.00