HJJSPOLS01 Intelligent Detection Liquid Level Sensor Connected Pipeline Liquid Level Water Level Switch Small 5mm Diameter Tube Level Detector,Pack of 2

HJJSPOLS01 Intelligent Detection Liquid Level Sensor Connected Pipeline Liquid Level Water Level Switch Small 5mm Diameter Tube Level Detector,Pack of 2

EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables

AEDIKO 4pcs DC 5V Relay Module 1 Channel Relay Switch Relay Board with Optocoupler Isolation Support High or Low Level Trigger