Coral Box A100Coral Box

$88

ATO

Coral Box A100

by Coral Box

The Coral Box A100 uses a patented optical sensor to track sump water level, paired with a floating mechanical sensor that shuts off the pump and sounds an alarm if the water rises too high.

entryOptical + float backup

Sensor

Optical + float backup

from$88

Compatibility with your build

Start a build to see compatibility for this product

Specifications

The full sheet

Sensor

Type: Optical + float backup

What we check

Rules this part takes part in

ATO reservoir

Checks the reservoir covers roughly 14 days of evaporation for your tank size.

See methodology

Works well with

Compatible tanks

20 NUVO Fusion AIO Long

Alternatives

Others in this category

entry

ATO with Controller QST2.0

Triple Optical ATO Kit

Frequently asked

What are the key specs of the Coral Box A100?

Sensor: Optical + float backup.

How much does the Coral Box A100 cost?

The Coral Box A100 starts around $88, though prices vary by retailer — see current offers on this page.

Which tanks is the Coral Box A100 compatible with?

Based on ReefPicker's compatibility checks, the Coral Box A100 fits tanks including Fluval Sea Evo 5, Innovative Marine 20 NUVO Fusion AIO Long, Eshopps DeskMate Classic. Add it to a build on ReefPicker to check it against your specific tank.