4 Channel Relay Module 5V — Arduino Compatible Soldering Wire 100g Female Straight Header Pins are

Female Straight Header Pins are standard 0

widely used in harsh environments including chemical solutions

Arduino wireless remote control projects

This is a simple-to-use MQ7 Gas Sensor Carbon Monoxide Sensor

ideal for space-constrained and battery-powered projects

4 Channel Relay Module 5V — Arduino Compatible Soldering Wire 100g Female Straight Header Pins are4 Channel Relay Module 5V Quad Channel Relay Board The 4 Channel Relay Module 5V allows you to independently control four high voltage AC or DC loads from a single microcontroller. Whether you're building a smart home controller, an automated greenhouse, or an industrial control system, this module gives you four independently switchable SPDT relays in one compact board. Technical Specifications Parameter Value Number of Channels 4 Control Voltage 5V