The KEI SYSTEM BTB-A111/OIA is a high-performance, submersible level transmitter specifically designed for the rigorous demands of the marine industry. It is engineered for accurate and reliable measurement of liquid levels in ballast tanks, fuel oil tanks, and other vessel compartments. Utilizing a robust piezoresistive pressure sensor, this transmitter provides a stable 4-20mA output signal proportional to the liquid level. Its durable construction ensures long-term performance and resistance to corrosion in harsh saltwater environments, making it an essential component for ship automation and tank monitoring systems.