Dependable liquid level sensing for compact and mid-sized tank installations

The WEMA S3 sender is a robust 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 reliable long-term operation in demanding conditions 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 features a fixed 225 mm sender length, making it suitable for compact to mid-depth tank applications requiring dependable level monitoring.

Key Features

• 316 Stainless Steel Construction: Manufactured from marine-grade stainless steel to provide excellent corrosion resistance and long-term durability.
• Reed Switch Float Technology: Uses magnet-activated reed switches to deliver accurate and stable liquid level readings with minimal mechanical wear.
• 240–30 Ohm Output: Provides reliable resistance output compatible with a broad range of marine and automotive gauges.
• 225 mm Sender Length: Configured for compact and mid-sized tank installations requiring consistent and accurate liquid level measurement.
• Wide Liquid Compatibility: Suitable for fuel, diesel, petrol, water, oil, and other commonly stored liquids across various applications.
• 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 systems.
• Sealed Internal Electronics: Fully enclosed construction helps protect internal components from liquid exposure and environmental conditions.

Built for dependable performance and accurate monitoring, this sender provides a durable solution for liquid level measurement across marine, automotive, and industrial tank systems.