Multi Purpose Double Ball Float Switch Suitable for Home and Industry Use

Stainless Steel Double Ball Float Switch for Easy Water and Fuel Tank Control

45-250mm Double Ball Float Switch Stainless Steel Tank Water Level Sensor-UK

Advanced Stainless Steel Double Ball Float Switch for Tank and Pond Alarms

Double Ball Float Switch for Water Level Detection in Various Tank Applications

Vertical Stainless Steel Dual Ball Tank Liquid Level Sensor Float Switch 135mm

Water Level Sensor with Dual Ball Float Switch for Effective Tank Management

Double Ball Float Switch Water Level Sensor for Fish Tank and Pool Use