Why AquaSense
An ultrasonic distance sensor watches the water level from above the rim — no float to stick, nothing in the water.
A stick-on conductive pad strip on your reservoir wall pauses the pump and alerts you the instant water drops below it.
Setup in under 10 minutes. Live tank insights in a beautiful app — for iOS, Android, and the web.
How it works
Four steps, ten minutes, no soldering, no scripting.
Clips onto the rim of your sump or display tank with the included silicone bracket.
Open the AquaSense app, scan the QR code on the back, and join your Wi-Fi.
One tap to mark your normal water level. The sensor learns the rest automatically.
AquaSense quietly maintains your level forever. You'll only hear from us when something matters.
Non-contact sensing
A float switch only knows two states: open and closed. AquaSense uses an ultrasonic distance sensor mounted above the rim to read the actual water level continuously, then doses in small, predictable pulses — keeping salinity steadier than a float ever could.

Display tank ATO topped off 38 mL. Reservoir at 62%.
Push notification sent to your phone
Failsafes that run on-device
The pump runtime cap and the reservoir low-water pad both run on the controller itself, so they keep working even when your Wi-Fi is down or our cloud is offline.
Pump runtime cap
Hard 90-second limit per fill cycle.
Low-water pad
Stick-on conductive strip on your reservoir wall.
On-device logic
Failsafes run on the controller — no cloud needed.
Push alerts
Sent the moment a fill cycle is paused.
The app
Live water level, top-off history, alerts, and multi-tank support — all from a single app on iOS and Android. The optional AquaSense Pro plan (

Live water level, at a glance
See your reservoir, last refill, and forecast the moment you open the app.

Optional AI tank assistant
AquaSense Pro adds a hands-free AI agent that manages your tank by chat.

Set up your tank in a minute
A guided onboarding builds a digital twin of your aquarium on first launch.
Ultrasonic
Tank-side sensor
Conductive pad
Reservoir sensor
Wi-Fi 2.4 GHz
Connectivity
12 V DC adapter
Power
12 V peristaltic
Pump
~ 7.5 mL/s
Pump output
Up to 300 gal
Tank size
Common questions
The AquaSense ATO ships free in the US. If yours arrives damaged or defective, we'll replace it.