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Devices & Sensors
Application Uses

Optical liquid switch is useful for detection of either absence or presence of water (clear or turbid) or detect water level.

Applications include:

  • Over-flow detection in tanks/reservoirs/pans/ dams
  • Low-level or high-level monitoring with warning/control in tanks, salt farms 
  • Empty pipe/blockage detection in water/ drainage pipelines
  • Water level warning on vehicles
  • Alarm in events of water flow over bridge/road or under-pass for traffic management and safety
  • Water-level monitoring and alarm in open canal/stream/open drainage for vicinal population safety
  • Warning of high tides in coastal areas
  • Telecom outdoor stations, electrical substation, tunnels, basements for rainwater ingress alarm
  • Domestic appliances based on water application
Salient Technical Features

Optical liquid switch is suited for use in any process directory employing water service. The change in state from presence to absence of water or vice-a-versa, triggers inbuilt relay (250Vac/220Vdc @ 2A) which can be used for switching applications and/or for annunciating audio or visual alarm, or signaling process controllers. Features include:

  • Low cost
  • Low power demand
  • Compact design
  • No calibration/adjustment required
  • Pipe end-connection
  • Water proof
  • Easy installation
  • Suitable for various applications
TRL
TRL 6
Scale of Development:

Manufacturing fully tested, validated and qualified / System complete and qualified (test and demonstration))

Business scope & opportunity

Owing to growing awareness for water conservation, OLS market is huge and it is cost effective for deployment.

Environment Considerations

NA

Status of Licensing
Ready for licensing
Status Commercialization
Not applicable
Major Raw Materials Needed

Active/Passive electronic components, plastic for molding

Major Plant Equipment

Molding outsourced ₹10 per pc.

Techno-Economics

Costing estimated for 1000 nos. per year

  • Total investment cost of plant/machinery- ₹5,00,000
  • Raw material cost per year - ₹2,50,000
  • Total cost of production per year - ₹5,00,000
  • Sale price per unit - ₹600
  • Gross profit from sale of item/unit per year - ₹60
  • Net profit per year - ₹60,000
  • Benefit cost ratio (BCR) - > 10%
  • Return on investment (ROI) - >12%
  • Payback period - ~8 years
Technology Package

Know-how related to product design, assembly, testing and validation

Photograph
OLS-Tech
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