The TeleSensor is an external liquid level transmitter that uses a force balance principle to measure liquid levels in tanks. It has a flange that mounts to the outside of tanks and a diaphragm that senses the hydrostatic pressure from the liquid height. This pressure is converted to a proportional 4-20 mA electrical or pneumatic output signal. It can interface with indicators or controllers to monitor levels remotely. The system is largely unaffected by temperature and immune to drift, making it suitable for applications requiring accurate and reliable level measurement.