Reliable waste water level monitoring solution for marine and RV tanks

The WEMA S3H sender is a purpose-built liquid level sensor designed specifically for accurate monitoring of grey and black water tanks in marine, caravan, and recreational vehicle applications. Constructed from corrosion-resistant AISI 316 stainless steel, it ensures long-term durability in harsh waste environments while delivering stable and linear resistance output for compatible gauges. Using proven float and reed switch technology, it converts tank levels into precise electrical signals, supporting both 12V and 24V systems and providing dependable performance across a range of tank sizes.

Key Features

• Designed for Waste Water Applications: Engineered specifically for grey and black water tanks, ensuring reliable performance in waste environments and not suitable for fuel use.
• 316 Stainless Steel Construction: Built from high-grade stainless steel to resist corrosion and maximise durability in harsh conditions.
• 240–30 Ohm Output: Provides linear resistance signal compatible with a wide range of gauges for accurate level indication.
• Reed Switch Float Technology: Utilises magnet-activated reed switches for consistent, low-wear operation and stable readings.
• Threaded Mounting Design: Features a 1¼" BSP thread for secure and straightforward installation into compatible tanks.
• Length (305 mm): Suitable for mid-length tank depth applications.
• Low Power Operation: Passive design powered directly by the gauge, supporting both 12V and 24V systems.
• Pre-Wired Leads: Supplied with tinned flying leads for easy connection and reliable electrical performance.

Designed for durability, accuracy, and ease of installation, this sender provides dependable waste tank level monitoring across demanding mobile and marine environments.