Reliable liquid level sensing for marine and automotive tank monitoring systems

The WEMA S3 sender is a high-quality liquid level sensor engineered for accurate monitoring of fuel, water, and other liquids across marine, automotive, and industrial applications. Constructed 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 consistent readings across both 12V and 24V systems. This variant features a fixed 275 mm sender length, making it suitable for compact and mid-depth tank installations requiring accurate and reliable level measurement.

Key Features

• 316 Stainless Steel Construction: Manufactured from marine-grade stainless steel for excellent corrosion resistance and long service life in harsh environments.
• Reed Switch Float Technology: Uses magnet-activated reed switches to provide accurate and stable 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.
• 275 mm Sender Length: Designed for compact and mid-sized tank applications requiring dependable liquid level monitoring.
• Wide Liquid Compatibility: Suitable for fuel, diesel, petrol, water, oil, and other commonly stored liquids across various 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 construction protects internal components from liquid exposure and environmental conditions.

Designed for dependable operation and accurate performance, this sender provides a durable solution for liquid level monitoring across marine, automotive, and industrial environments.