Reliable liquid level sensing solution for compact marine and vehicle tank systems

The WEMA S3 sender is a durable and precise 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. Utilising reed switch and float technology, it converts liquid levels into consistent electrical signals for accurate readings on both 12V and 24V systems. This variant is configured with a fixed 150 mm sender length, making it ideal for compact tanks and limited-space installations.

Key Features

• 316 Stainless Steel Construction: Built from marine-grade stainless steel to resist corrosion and ensure long service life in harsh liquid environments.
• Reed Switch Float Technology: Uses magnet-activated reed switches to provide stable and accurate level readings with minimal mechanical wear over time.
• 0–180 Ohm Output: Delivers a consistent resistance signal compatible with a wide range of liquid level gauges for accurate indication.
• 150 mm Sender Length: Specifically designed for shallow and compact tanks requiring accurate liquid level measurement in confined installations.
• Wide Liquid Compatibility: Suitable for monitoring fuel, diesel, petrol, water, oil, and other commonly stored liquids across various applications.
• Threaded Mounting Design: Features a 1¼" BSP thread for secure and straightforward installation into compatible tank fittings.
• Low Power Operation: Passive sender design operates directly from the gauge and supports both 12V and 24V electrical systems.
• Sealed Internal Electronics: Fully enclosed construction helps protect internal components from liquid exposure and harsh operating conditions.

Designed for accuracy, durability, and dependable operation, this sender provides consistent liquid level monitoring for compact tank applications.