SmartSense is a small monitor which is attached to the underside base of a gas cylinder with two strong magnets. It detects the gas level remaining within the cylinder and sends this information via Bluetooth to a smartphone. The app sends alarm notifications to inform the user when the gas level detected is below the settable threshold. Multiple gas bottles can be monitored from one phone. Users can configure settings individually for each monitored cylinder, including naming the cylinder, cylinder size, alarms and unit of measurement to be displayed as percentage or centimeters. The Bluetooth connection enables remote monitoring for distances of up to 15 meter from devices using Bluetooth 4.0 + Low Energy (BLE). Caravanners running their heaters and fridges on gas; café owners using outdoor gas heaters; BBQ lovers and everybody else using liquefied gas will find this app to be highly useful and convenient. No more warm water testing, weighing gas bottles or fortune telling – you’ve got an app for that.