Accurate liquid level monitoring for marine and industrial tank applications

The WEMA S3 sender is a durable and precise liquid level sensor designed for monitoring fuel, water, and other liquids across marine, automotive, and industrial environments. Manufactured from corrosion-resistant 316 stainless steel, it provides dependable long-term performance in demanding conditions while delivering stable resistance output for compatible gauges. Utilising 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 250 mm sender length, making it suitable for compact and mid-sized tank installations requiring reliable level measurement.

Key Features

• 316 Stainless Steel Construction: Built from marine-grade stainless steel to resist corrosion and provide long-lasting durability 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 consistent resistance output compatible with a wide range of marine and automotive gauges.
• 250 mm Sender Length: Designed for compact and mid-depth tank applications requiring dependable and accurate liquid level monitoring.
• Wide Liquid Compatibility: Suitable for fuel, diesel, petrol, water, oil, and other commonly stored liquids across multiple applications.
• Threaded Mounting Design: Features a 1¼" BSP threaded fitting for secure installation into compatible tanks and reservoirs.
• Low Power Operation: Passive design operates directly from the connected gauge and supports both 12V and 24V systems.
• Sealed Internal Electronics: Fully enclosed internal components help protect against liquid ingress and maintain long-term operational reliability.

Designed for dependable operation and installation flexibility, this sender delivers accurate liquid level measurement for marine, automotive, and industrial tank systems.