Qmax Water Level Controller

Qmax Systems

About this app

Qmax Water Level Controller turns your overhead tank or sump into a connected
one. Pair the Qmax sensor to your Wi-Fi, and the app shows the real level of
your tank on your phone at home or anywhere else and runs the pump for you.

REAL-TIME TANK LEVEL
• Live water level, updated as the sensor reports it
• Motor status at a glance running, stopped, or paused
• Battery, voltage, current and solar charge for the sensor unit
• A clear timestamp, so you always know how fresh the reading is
• An offline banner the moment the sensor or your phone loses connection

AUTOMATIC PUMP CONTROL
• Set an ON level and an OFF level the controller fills the tank and stops
on its own
• Switch to manual any time and start or stop the pump with one tap
• Silent time: choose quiet hours in which no new fill begins

DRY-RUN AND MOTOR PROTECTION
• Dry-run protection trips the motor when the pump runs without water
• Overload protection stops the pump before it is damaged
• "Tank not filling" alert when the level does not rise while the motor runs
• Set your master power reference yourself, or let the controller measure it
on the next fill

ALERTS ON YOUR PHONE
• Push notifications for dry-run protection and tank overflow warnings
• Low battery warning for the sensor unit
• In-app banners for every fault the controller reports

USAGE HISTORY
• Tank level and battery charts over the last 6 hours, 24 hours, 7 days or
30 days
• Pump cycles, total runtime and average level for the period
• Spot a leak, a slow-filling line, or a pump running more than it should

SIMPLE SETUP
• Sign in with your mobile number and an OTP no password to remember
• Add a new sensor over Bluetooth: pick your Wi-Fi network, enter the
password, and the device connects
• Or scan the QR code on the unit to add it in seconds
• Guided sensor install and tank calibration, so readings match your real
tank depth
• Name each tank, and switch between units if you look after more than one

MADE FOR EVERY DAY
• Light and dark theme
• Uncluttered screens built for a quick glance
• Works on Android phones and tablets

Requires a Qmax water level sensor and a Wi-Fi network within reach of the
tank. Bluetooth and location permissions are used only during device setup
to find your sensor and list nearby Wi-Fi networks. Notification permission is
used to deliver pump and tank alerts.

What’s new

• Alerts: fixed Settings saying notifications aren't supported on phones that do support them — you can now tap to retry if registration fails.
• Signing out now reliably stops alerts reaching this phone.
• New: the app tells you when a newer version is available on the Play Store.
• Clearer wording on the device removal button in Settings.
• Simplified the login screen.
• Smaller download and lower memory use.