With TankMate you can easily monitor your tank levels - from anywhere. Take the hassle out of tank management with a TankMate Level Sensor. Access your key information whenever you need to, from anywhere. - Current tank volume - Predicted supply in days - Your recent usage trends - Customised phone notifications Now with support for multiple tanks and sensor within the mobile app. Terms of Use: https://tankmate.co.nz/policies/terms-of-service