Precise liquid level monitoring for marine and industrial tank applications

The WEMA S3 sender is a durable and accurate liquid level sensor designed for monitoring fuel, water, and other liquids across marine, automotive, and industrial environments. Constructed from corrosion-resistant 316 stainless steel, it delivers dependable long-term performance in demanding conditions while providing stable resistance output for compatible gauges. Utilising reed switch and float technology, it converts liquid levels into precise electrical signals for consistent readings across both 12V and 24V systems. This variant features a fixed 500 mm sender length, making it suitable for mid to deeper tank installations requiring reliable and accurate liquid level measurement.

Key Features

• 316 Stainless Steel Construction: Manufactured from marine-grade stainless steel to resist corrosion and ensure long-lasting durability in harsh environments.
• Reed Switch Float Technology: Uses magnet-activated reed switches to provide stable and accurate liquid level readings with minimal mechanical wear.
• 240–30 Ohm Output: Delivers reliable resistance output compatible with a wide range of marine and automotive gauges.
• 500 mm Sender Length: Designed for mid to deeper tank applications requiring dependable and consistent 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 reliability.

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