How TankSync Works

A sensor on the tank. A main unit in the shade. A round hub on your wall. That is the whole system.

The three problems it solves

The overflow you hear too late

Water running down the outside wall at six in the morning, a tank of pumped water gone, and a damp patch that takes a month to dry.

The pump that runs dry

The sump empties, nobody notices, and the motor keeps running. A dry run is the fastest way to kill a pump.

The guesswork

Tapping the tank. Timing the pump. Climbing three floors to look. TankSync replaces all of it with a number on a screen and an alert on your phone.

Built in three parts

The tank unit's three parts: level sensor, main unit and solar panel

The new TankSync is modular. Each part goes where it works best:

  • Level sensor on the tank lid, measuring the water from above.
  • Main unit on a wall or tank side, out of the sun, on a cable of about 1.5 metres.
  • Solar panel wherever the sun reaches. For sumps and shaded tanks, choose the no-solar build and charge it from a USB charger or power bank.

Rooftop or underground, full sun or deep shade, at home or across a whole building.

Setting it up

Install in three steps: sensor through the lid, main unit on a shaded wall, panel in the sun

1. Fit the sensor

The sensor goes through one hole in the tank lid and locks in place. Leave at least 25 cm between its face and the highest water level.

2. Mount the main unit and panel

Screws, zip ties or outdoor tape. Put the main unit in the shade and the panel in the sun. No perfect angle needed.

3. Pair with the hub

Plug the hub in indoors, hold its touch pad until the ring fills, then tap the tank unit. Your tank appears on the hub in seconds. No account, app or internet connection is needed to get a reading.

What the hub shows you

The hub screen: tank level in percent and litres, with the glowing ring

A round colour display carries the live level for every paired tank in percent and litres, with battery and signal alongside. A larger 1.69 inch rectangular display is available too.

Around it, a light ring fills as the tank fills, so you can read the level from across the room. It turns amber when a tank is low, pulses red when it is nearly empty, and blinks white if a tank unit stops reporting.

The buzzer sounds for low, empty and near-overflow, with Quiet, Standard and Loud sounds and quiet hours for the night.

The tank unit runs itself

It wakes on its own, takes a reading, sends it to the hub and goes back to sleep. Tap its touch pad any time for a fresh reading; two quick blinks mean the hub received it. Every build carries a battery, so a power cut or a cloudy spell never stops the readings, and the app and hub show the battery level.

Lite or LoRa

Lite is a short-range radio, right for 1 and 2 floor homes. LoRa is long-range, for 3 to 4 floors, apartment and multi-storey buildings, farmhouses and commercial sites. One hub listens to both at once, so you can mix them on the same hub.

The LoRa version uses a pre-certified LoRa radio module on 865 to 867 MHz, the band India allocates for licence-free low-power devices.

The internet goes down. Your tank does not care.

Most smart tank sensors are a Wi-Fi chip and a cloud account. When the router reboots, the app stops knowing anything. TankSync tank units talk to the hub on their own radio, and the hub shows the level on its own screen with its own ring and buzzer. The app, the cloud dashboard and Home Assistant are layers on top. Unplug your internet and the alarm still sounds.

Smart, when you want it

  • The TankSync app: live levels, history, battery and signal, and family sharing for up to 5 people per hub.
  • Alerts on your phone for low water, an empty tank, near overflow, a fast drop that can mean a leak, and a unit going offline.
  • Home Assistant, locally: level, volume and water-used sensors, with no cloud needed.
  • Automations: switch your pump through a smart relay, stop dry runs, and track daily water use. See Smart Home and Automations.

Updates for as long as you own it

  • Hub: one click in the app, or on the hub web page on your own network
  • Tank unit: hold the touch pad for setup mode and upload the update from its setup page

How many tank units do I need?

One per tank. Overhead, sump, borewell and garden tanks all report to the same hub, and a hub supports up to six. For this first batch TankSync is sold as a complete kit. Start with the TankSync Modular Kit.

Browse the range or read the Help Centre.