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

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

200mm Liquid Float Switch Water Level Sensor Stainless Steel Double Ball

Stainless Steel Vertical Float Switch Water Level Sensor Tank Level Controller

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

Reliable Stainless Steel Dual Ball Float Switch for Water Level Management