2pcs PP Float Switch M8 46mm Fish Tank Vertical Liquid Water Level Sensor

Reliable 2pcs Float Switch M8 for Water Level Detection in For Tanks and Pools

2pcs PP Float Switch M10 66mm Fish Tank Vertical Liquid Water Level Sensor

PP Float Switch M10 90mm Fish Tank Vertical Liquid Water Level Sensor Plastic

2pcs PP Float Switch M10 77mm Fish Tank Vertical Water Level Sensor for Pool

Water Level Sensor 2pcs Float Switch M8 for Tank Pool and Hydroponics Use

PP Dual Ball Float Switch M10 115mm Fish Tank Vertical Liquid Water Level Sensor