ReefPicker
Coral Box A100Coral Box
ATO
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
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

R5
ATO reservoir
Checks the reservoir covers roughly 14 days of evaporation for your tank size.
See methodology
Buy from

Where to get it

Amazon (US)
$88
Free with Prime
$88 total
Estimated price — verify at checkout
Go to retailer

ReefPicker may earn a commission on purchases made through these links. It never changes the price you pay, and never affects compatibility results. As an Amazon Associate we earn from qualifying purchases.

Works well with

Compatible tanks

Alternatives

Others in this category

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 costs around $88. Retailers price it differently, and ReefPicker lists the offers it has for your region on the Coral Box A100 product 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, Ultum Nature Systems 45SA Dual, Ultum Nature Systems 30A Dual. Add it to a build on ReefPicker to check it against your specific tank.