TANK LEVEL SENSORS
Standard assortment
S3 - Fuel / water / waste water
S5 - Fuel / water / waste water
S3H - Septic / black water / holding tank
- Lengths 100mm - 410mm
- Lengths 510mm - 760mm
Our S3 and S5 level sensors for both fuel and water provides highly accurate level measurement for a wide variety of applications, including those in severe
environments.
Measurement is done by a series of reed switches positioned inside the level tube. A float with built-in magnets then triggers the reed relays generating a potential - free resistance with an ohm value that increases or decreases. Resistance output is fully customisable.
The float is the only moving part of the sensors, thereby minimising potential mechanical failures.
All sensors are fully insulated to protect against voltage inside the tank.
The level sensors are made of stainless steel and can be mounted in almost any tank shape either by 1¼" BSP threads, bayonet hole or standard 5-hole configuration.
S3 Tank Level Sensor 
- in 316 stainless steel fitted with 1¼" BSP threads 
The procedure for testing the resistance value on a level sensor can be downloaded here
