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Darcy Separator Alarm Steel Silt Probe (Klargester/Conder)

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Direct Drainage Reviews


This steel silt probe can be used with both the mains and solar-powered Darcy separator/interceptor alarm system. The probe comes with a 5m flylead and automatically monitors silt levels, notifying immediately when the separator requires emptying.


Darcy Probe Guidance 


The alarm system and sensor guarantees an increased level of safety on site, and requires simple installation for bespoke monitoring of separators.


Too much silt in a separator tank reduces its storage capacity and therefore increases the risk of a pollution incident. The Darcy Silt Probe is simply suspended within the separator tank to a depth required to detect the maximum amount of silt allowed.

The Opto Switch Sensor consists of a gallium arsenide infra-red emitting diode coupled with a silicon photo darlington in a plastic housing. The packaging system is designed to optimise the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability.The gap in the housing provides a means of interrupting the signal with opaque materials such as sand, silt, mud, sludge etc, therefore switching the output from an “ON” to an “OFF” state.



  • Warns of excessive levels of silt within the separator
  • Alerts you when the separator requires emptying
  • Reduces site waste-management costs and ongoing servicing costs
  • Complies with EN858-1&2 and PPG3
  • Can be fitted to interceptors from all manufacturers (particularly suited to Klargester and Conder)
  • Ensures safe and economic operation of interceptors
  • Stainless/nylon probe housing 38mm dia.
  • Opto Switch sensor device
  • 5 metres of cable (standard)
  • Flexible strain relief cable gland


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