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The HYDRO-WIPER-D-L is a common accessory for the OBS-3+ Turbidity sensor. This data-logger-controlled wiper can be activated to remove algae and other fouling before each measurement. The HYDRO-WIPER-D-L uses the data logger's power supply and has a user-specified length.

The "-L" on a product model indicates that the cable length is specified at the time of order.


Control Input The wiper control module has an internal 10 k pull-down resistor. The control line needs to be set high to +5 V for a minimum of 10 ms to initiate a wipe.
Power Supply 8 to 15 Vdc
Power Consumption
  • 0.05 mA (between wipes)
  • Typically 90 mA
    If the wiper arm is jammed, power consumption can momentarily rise to about 500 mA.
Construction Stainless steel, acetal
Wiper Shaft Multiple bearing support with quad ring seal
Depth Rating 30 m (98.425 ft)
Cable Type EPDM jacketed cable

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