Reliable liquid level sensing for marine and industrial tank monitoring systems

The WEMA S3 sender is a high-quality liquid level sensor engineered for accurate monitoring of fuel, water, and other liquids across marine, automotive, and industrial applications. Manufactured from corrosion-resistant 316 stainless steel, it provides dependable long-term performance in demanding environments while delivering stable resistance output for compatible gauges. Using reed switch and float technology, it converts liquid levels into precise electrical signals for accurate readings across both 12V and 24V systems. This variant features a fixed 450 mm sender length, making it suitable for mid-depth tank installations requiring dependable and consistent 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 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.
• 450 mm Sender Length: Designed for mid-depth 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 maintain long-term operational stability.
• Designed for dependable operation and installation flexibility, this sender delivers accurate liquid level monitoring across marine, automotive, and industrial tank applications.