The S3 series sender is an innovative solution for monitoring the level of fuel and/or water tanks in boats, trucks, coaches, caravans and recreational vehicles and is the design that launched Wema. Utilising the renowned Wema reed switch concept this popular device is available in a myriad of lengths to suit any tank. 

Wema S3 Tank Senders

Model S3-E150 through to S3-E1500
Tank Depth 150mm through to 1500mm
Resistance 0 Ohms empty – 180 Ohms full linear
Sensing Magnetic Reed Switch
Operating Voltage 12/24VDC
Operating Temp. -40℃ to +85℃
Output Resistive (US and EURO Standards)
Connection 2 x Flying leads (tinned) 290mm long (sheathed)
Mounting Threaded 1 1/4” BSP (British Standard Pipe Parallel)
Material AISI 316 Stainless Steel


Brand Wema
Shipping Weight 1.0000kg
Shipping Width 0.200m
Shipping Height 0.200m
Shipping Length 0.500m
Shipping Cubic 0.020000000m3

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