Precise liquid level sensing for medium-capacity tank installations

The WEMA S5 sender is a precision-engineered liquid level sensor designed for accurate monitoring of fuel and water tanks across marine, automotive, and industrial applications. Featuring a 400 mm sender length, it is well suited to medium-capacity tanks requiring dependable and consistent level measurement. Constructed from corrosion-resistant AISI 316 stainless steel, it delivers long-term durability while providing a stable 0–180 ohm resistance output for compatible gauges. Utilising reed switch and float technology, it ensures accurate liquid level readings and supports both 12V and 24V electrical systems.

Key Features

  • 316 Stainless Steel Construction: Manufactured from marine-grade stainless steel to provide excellent corrosion resistance and long service life in demanding environments.
  • Reed Switch Float Technology: Uses magnet-activated reed switches to deliver accurate and stable liquid level readings with minimal mechanical wear.
  • 0–180 Ohm Output: Provides a linear resistance signal for reliable compatibility with 0–180 ohm gauges.
  • 400 mm Sender Length: Ideal for medium-capacity tanks requiring accurate and dependable liquid level monitoring.
  • Fuel and Water Compatibility: Suitable for diesel, petrol, fresh water, and grey water tank applications across marine, automotive, and industrial environments.
  • 5-Hole SAE Mounting Flange: Features a standard SAE mounting pattern for secure and straightforward installation.
  • Low Power Operation: Passive design operates directly from the connected gauge and supports both 12V and 24V electrical systems.
  • Pre-Wired Leads: Supplied with tinned flying leads for simple installation and reliable electrical performance.

Designed for long-term reliability and precise level indication, this sender provides dependable liquid level monitoring for a wide range of tank applications.

Product Specifications
Material AISI 316 Stainless Steel
Application Fuel and Water
Mounting Type 5 Hole SAE Flange
Output Type Variable Resistance
Resistance Range 0–180Ω
Operating Voltage 12V / 24V
Length Availability 150 mm to 1500 mm
Operating Temperature -40°C to +85°C
Termination Tinned Flying Leads
SKU WEM.S5-E400
Model # S5-E400
Brand Wema
Shipping Weight 0.0010kg
Shipping Height 0.050m
Shipping Length 0.410m

Be The First To Review This Product!

Help other Outback Marine Australia Pty Ltd users shop smarter by writing reviews for products you have purchased.

Write a product review