BF-DKT4 is suitable for various water-level control applications, such as rooftop tank water-level display and control in hotels and dormitories, and water-tower level display and control.

EV3 can be used in four different applications, making it a truly versatile, fully automatic controller.Used with BESFUL three-wire water-level sensors for fully automatic water filling, pumping from wells to storage tanks, automatic drainage based on reservoir levels, automatic basement flood drainage, temperature-controlled heating with dry-burn protection, and many other applications.DIN rail design for easy installation and maintenance, with simple single-button operation.

EV5 is a fully automatic controller for pumping, draining, and water filling. This multipurpose controller offers more powerful functions than EV3 and is durable and flexible across diverse applications.

BF-KT4 is suitable for various water-level control applications, such as rooftop tank water-level display and control in hotels and dormitories, water-tower level display and control, and municipal well-water pumping control.

BF-912A+ is a fully automatic controller for pumping, draining, and water filling. It automatically controls water supply, provides low-water protection, and is suitable for various drainage and pumping applications.