SCD40 SCD41 Gas Sensor Module CO2 Carbon Dioxide Detection Temperature Humidity 2-in-1 I2C Communication

$65.00

Waveshare GSM/GPRS/GPS/Bluetooth SIM868 Development Board Extension Board Compatible with Arduino/Raspberry Pi 4

$243.20

Waveshare Raspberry Pi CM4 Quad RS485 Extension Board Isolated Dual Ethernet Ports Development Board HDMI Interface

$544.20

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

$83.00

UK GSS Infrared CO2 Sensor SprintIR-WF-100 High-Speed Response WF-20

$65.00

PulseSensor Heart Rate Sensor HRV Heart Rate Monitoring Module Single-Chip Open Source Hardware

$48.91

MAX30100/MAX30102 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

$5.98

Waveshare Raspberry Pi CM4 Quad RS485 Expansion Board, Isolated Type, Dual Ethernet Ports, Development Board with HDMI Interface

$541.30

4-Channel AHD Camera Adapter Board XS9922B Adapter Board 38 Board Evaluation Board

$199.00

Digital Display Fiber Optic Amplifier Fiber Sensor ES-DN18 EX-DN10 Diffuse Reflection Through-Beam Probe Photoelectric Switch

$135.00

Digital and Analog Sound Detection Module with LM386 Audio Recognition, Voice-Controlled Switch, and Microphone Sensor

$39.90

Remi Pi RZG2L Dual-Core A55 Development Board Learning Board Compatible with Raspberry Pi Extensions

$753.60