The H20-D Leek water detector was designed by John Leek to let the diver know if water is present inside your water proof housing. The sensor circuit on the bottom of the electronic board will cause the LED warning light to rapidly flash when water is present. This may help you get the housing out of the water before water can damage your camera. It will not help with a full flood though the warning light is flashing.
The H2O-D Does Not Prevent Floods. It is only a water detector and warning light.
The electronic unit is sealed with the battery so you won’t need to change batteries. To test the operation of the sensor just place a damp finger across the silver sensor bars to make the yellow LED flash.
You should always check your housing seal. By placing your housing in a water container for a minute, look to see if there are any leaks before you begin your dive.
Place the electronic board under the camera.
Place warning LED next to viewfinder
Flashing yellow LED means there is moisture present.
