Accurate liquid level monitoring for compact marine and automotive tank installations

The WEMA S3 sender is a compact and durable liquid level sensor engineered for accurate monitoring of fuel, water, and other liquids in 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 precise electrical signals for accurate readings across both 12V and 24V systems. This variant is specifically configured with a fixed 150 mm sender length, making it ideal for compact tank installations requiring reliable level measurement.

Key Features

• 316 Stainless Steel Construction: Built from marine-grade stainless steel to provide excellent corrosion resistance and long-term durability in harsh liquid 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 a consistent resistance signal compatible with a wide range of standard marine and automotive gauges.
• 150 mm Sender Length: Specifically designed for compact tank applications where shorter sender depth is required for accurate 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 thread for secure installation into compatible tank fittings and sender ports.
• 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 consistent long-term performance.

Designed for compact tank installations requiring dependable and accurate liquid level monitoring, this sender offers durable construction and stable gauge compatibility for everyday operation.