24V 8-Channel Relay Control Module for Electronic Controller Prototyping Tasks

8-Channel 24V Control Module for Multi-Device Switching in Automation Setups

8 Channel 24V Logic Level Control Module with High Low Trigger Support for DIY

24V 8-Channel Automation Control Module with High Low Level Triggering Options

4 Channel USB Relay Board for Controlling High Voltage AC and DC Loads

Lightweight Conductivity Tester Pen for Efficient Testing of Grounding Products

6PCS 2-Channel Opto-Isolation Module, power level Control Adapter Module, Driver

4PCS Vibration Switch Module Piezoelectric Buzzer for Prototyping and Testing