Route the cable of the eK Level Sensor through the larger hole of the L-shaped bracket.
Secure the L-shaped bracket to the eK Level Sensor using one of the screws.
Use the other two screws to secure the L-shaped mounting bracket to the U-shaped mounting plate. The U-shaped mounting plate can be positioned horizontally or vertically, depending on your tank.
Place the plastic bolt into the corresponding hole of the U-shaped mounting plate. DO NOT tighten it yet.
Position the eK Level Sensor setup on your fish tank and keep turning the plastic bolt until the setup is securely fastened.
Make sure that the eK Level Sensor stands parallel to the water.