StellarGauge: Oil Tank Monitor

StellarGauge is a heating oil tank monitor: see the oil, kerosene, diesel or water level in your tank, in litres, on your phone. It is the companion app for the StellarGauge tank level sensor. The sensor sits on top of your tank, measures the distance to the liquid with a laser time-of-flight sensor, and broadcasts it over Bluetooth Low Energy. The app turns that into the tank level, the litres left and a history, so you know when to order heating oil before you run out. You need a StellarGauge sensor to use this app. Without one there is nothing to show. YOUR TANK LEVEL AT A GLANCE - The tank level as a percentage and in litres, on a gauge you can read at a glance. - The sensor's battery, signal and firmware version. - Recent readings and a history of how the level has changed. - A tank picture that matches yours: classic, bunded, IBC cube, round vertical or round horizontal. SETTING UP A SENSOR - Hold the sensor's button for five seconds and the app finds it on its own. - A short wizard asks what the tank holds, its capacity and its depths, and checks the sensor's firmware. - Calibrate automatically from a known fill level, or by hand with a tape measure. - Each sensor is paired to your account with its own encryption key, so neighbours can't read your tank. KEEPS READING IN THE BACKGROUND While a sensor is paired, the app keeps listening for its broadcasts with a foreground service and a notification, so readings keep arriving when the app is closed. WIRELESS FIRMWARE UPDATES When new sensor firmware is released, the app offers it and installs it over Bluetooth. The sensor never has to come off the tank. PLANS A free account covers one sensor and 14 days of history. Low-level, sudden-drop and low-battery alerts, a year of history, CSV export and up to 10 sensors are part of the StellarGauge Premium plan: if your account already has it, the app unlocks them when you sign in. YOUR DATA Sign in with your Google account. Your readings are stored on StellarGauge's EU-hosted servers so you can see them on any phone and on the web dashboard. The free version shows a small banner ad on the main screens; Premium removes it. In the EU, EEA, UK and Switzerland you are asked for consent first, and you can change your choice any time under Settings, Privacy & ad choices. You can delete your account and its data from the app menu or at stellargauge.com/delete-account. Questions: [email protected]