The Hydro-Wiper: Clean optical sensor windows and underwater camera housings.

“The wipers have made a huge improvement in data quality and reduction in cleaning effort. The ports can now be left for several months at a time without the need for manual cleaning while the port surface remains nearly as clean as immediately after a manual cleaning by divers”. UC San Diego Scripps Plankton Camera team.


What is a Hydro-Wiper?

The Hydro-Wiper is an innovative mechanical wiper system designed to fit easily to a wide variety of optical instruments. Talk to us about customization to fit your needs.

Using a regular gentle brushing action, the Hydro-Wiper keeps the optical window of the instrument clean from bio-fouling and unwanted deposits such as mud.

Cost effective: The Hydro-Wiper reduces the need for costly site visits to manually clean the instrument, maintaining data integrity throughout long deployments.

Proven in the field:   Zebra-Tech has created a range of models that are now being used by educational institutions, government agencies and private companies in all parts of the world.

Self-contained Hydro-Wiper

Ideal for extended deployments of sensors where external power supplies are not available. The wiper unit is connected to a rugged underwater housing that contains the batteries, control electronics, diagnostic LED and wipe interval select switch.

Powered by 6 user replaceable alkaline batteries, the Hydro-Wiper will operate for over 4 months with a 1 hour wiper interval. The wipe interval can be set from 15 minutes to 12 hours, to suit the environment. A high precision on-board clock ensures time drift during long deployments is minimal.

Data-logger controlled Hydro-Wiper
Data-logger controlled Hydro-Wiper

The Data-logger controlled Hydro-Wiper consists of a wiper unit that is attached to your sensor or underwater camera by a purpose designed clamp.

The wiper unit is connected to the Hydro-Wiper control module by an electrical cable. The control module is a small rugged wiring panel that connects to a power supply and a data logger. To initiate a wipe, the data logger simply sends a trigger signal to the control module.

Synchronizing the wipe with measurements from the instrument ensures data quality is consistent throughout the deployment and optical sensor fouling is minimized.

Hydro-Wiper Integration with Camera Housing.

Underwater camera need a clean?

The Hydro-Wiper can be customized and has been used successfully in a variety of underwater camera installations. Look at some of our recent designs.

Camera Housings

Often providing a solution for an underwater camera deployment requires some customization so please talk to us about your needs.

A custom housing?

If you are still looking at underwater camera housing options, Zebra-Tech collaborates with  MDEL (Marine Design Engineering Ltd) to provide an integrated housing and Hydro-Wiper for your underwater camera system. Read more here or Contact Us for more information.


Underwater lighting is also prone to bio-fouling and we have experience customizing solutions for those too.

CEFAS Smart buoy uses Hydro-Wipers for anti-fouling - keeping optical sensors clean
CEFAS Smart buoy.

Case study:

Learn how Hydro-Wipers deployed in the North Sea are ensuring data integrity during long deployments as well as saving time and money for researchers.

Full case study here

Self-contained Hydro-Wiper for C-Star

 Hydro-Wiper Gallery

Not all models are in our gallery as yet but these are some of our popular models. Please refer to our data sheet for information about standard dimensions and position of mounting holes etc.

View Gallery

A Hydro-Wiper gently cleans

 Hydro-Wipers deployed:

Bio-fouling isn’t usually pretty but we do like to see our Hydro-Wipers keeping sensors clear even after long deployments in harsh conditions. We always welcome new photos if you have Hydro-Wiper photos to share!

View here

Hydro-Wiper with Aqualogger 200

 Hydro-Wipers data sheet, manual and build sheets:

Available here