Durable liquid level sensing for deeper marine and industrial tank systems

The WEMA S3 sender is a reliable and precise liquid level sensor designed for monitoring fuel, water, and other liquids across marine, automotive, and industrial applications. Manufactured from corrosion-resistant 316 stainless steel, it delivers dependable long-term performance in demanding environments while providing stable resistance output for compatible gauges. Using reed switch and float technology, it converts liquid levels into accurate electrical signals for consistent readings across both 12V and 24V systems. This variant features a fixed 550 mm sender length, making it suitable for deeper tank installations requiring dependable and accurate liquid level measurement.

Key Features

• 316 Stainless Steel Construction: Built from marine-grade stainless steel to provide excellent corrosion resistance and long service life in harsh operating environments.
• Reed Switch Float Technology: Utilises magnet-activated reed switches to deliver stable and accurate liquid level readings with minimal mechanical wear.
• 240–30 Ohm Output: Provides reliable resistance output compatible with a wide range of marine and automotive gauges.
• 550 mm Sender Length: Designed for deeper tank applications requiring accurate and dependable liquid level monitoring.
• Wide Liquid Compatibility: Suitable for fuel, diesel, petrol, water, oil, and other commonly stored liquids across marine and industrial systems.
• Threaded Mounting Design: Features a 1¼" BSP threaded fitting for secure and straightforward installation into compatible tanks.
• Low Power Operation: Passive sender design operates directly from the connected gauge and supports both 12V and 24V electrical systems.
• Sealed Internal Electronics: Fully enclosed internal components help protect against liquid ingress and environmental exposure for long-term reliability.

Designed for dependable operation and installation flexibility, this sender provides accurate liquid level monitoring across marine, automotive, and industrial tank systems.