Stainless steel optical liquid level sensor

Featured Product from Intellisense Microelectronics Ltd.

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The optical liquid level sensor is used to monitor the level of liquids, such as water, oil, drink etc. The LLS.ELS1150 is an enhanced electro-optical level switch from IMS level sensor. This series utilize IMS advanced photoelectric sensor ASICs to achieve a high-speed and stable sensor with no moving parts.

Equipped with stainless steel housing, the sensor has an excellent performance in harsh environment. High temperature version is available up to 100°C. There is also a choice of two operation modes, two output types and four thread types. 


  • Accuracy ±1 mm
  • Protection degree: IP67
  • NPN or PNP output
  • light on or dark on switchable
  • Supply voltage 10 to 30 VDC
  • Fast response time: 1ms
  • Compact design, no moving components
  • Easy installation
  • Compatible with most liquids
  • Power on delay, power supply reverse polarity protection, output short-circuit protection, output reverse polarity protection