Durable liquid level sender for marine and industrial tank monitoring systems

The WEMA S3 sender is a reliable and accurate liquid level sensor designed for monitoring fuel, water, and other liquids across marine, automotive, and industrial applications. Built from corrosion-resistant 316 stainless steel, it delivers dependable long-term operation in demanding environments while providing stable resistance output for compatible gauges. Utilising 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 300 mm sender length, making it suitable for compact and mid-sized tank installations requiring consistent and dependable level measurement.

Key Features

• 316 Stainless Steel Construction: Manufactured from marine-grade stainless steel to resist corrosion and provide long-lasting durability in harsh environments.
• Reed Switch Float Technology: Uses 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.
• 300 mm Sender Length: Designed for compact and 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 exposure and maintain long-term operational stability.

Designed for reliable performance and installation flexibility, this sender delivers accurate liquid level monitoring across marine, automotive, and industrial tank applications.