Wide Voltage HC-SR04 Ultrasonic Module 3.3V-5V Distance Sensor Board with UART IIC Interface

$4.30

Photodiode Module Light Control Switch Photosensitive Sensor Light Reception Brightness Detection 3-Pin 4-Pin

$2.84

Ultrasonic Sensor Bracket Mounting Fixture, Ultrasonic Module Holder Compatible with SG90 Servo

$9.90

Zave Speed Measurement Module Smart Car Infrared Slot Photoelectric Coupler Opposed Photoelectric Sensor Code Disk Counter Motor

$3.49

Three-Wire Four-Wire Flame Sensor Module Fire Source Detection Module Infrared Receiver Firelight Detection Alarm

$3.88

Photoresistor Sensor Module Brightness Light Detection Photoelectric Switch Sensor with Dupont Lines 3/4-Pin

$2.96

DHT11/20 SHT30/40 Temperature and Humidity Sensor Digital Module with AM2301 I2C Output

$3.76

Zave Ultrasonic Ranging Module HC-SR04 US-015-025-026-100 Distance Sensor Bracket

$3.17

GY-906 MLX90614ESF BAA BCC DCI IR Infrared Temperature Sensor Module Temperature Sampler

$59.57

Infrared Distance Sensor Module GP2Y0A21YK0F 10-80cm Distance Sensor

$24.09

FSR402/RFP602 Resistive Thin-Film Pressure Sensor Pressure Switch Force-Sensitive Module 1/2/5KG

$4.20

Light Sensor Module Photoresistor Module Light Sensing/Photoelectric Switch Smart Car Accessories

$2.23