Content :

Accurate, safe&user friendly
Display the propane levels&remaining cook time in minutes on phone
Safe-no connection-no chance of leaks
Low level alarm at 20%
Compatible with US propane tank (LB):20, 30, 40
Easy to set up, easy to read, no tools required
APP downloadable in App Store&Google Play Store, named 'BBQ Gas Monitor'
Compatible with IOS6.0+&Android 4.3+ (Bluetooth 4.0+)
App can run/sync in the background of phone system
Transmitting Distance: 15-20 meters in sight
Dimension: 220mm(W) *38mm(H)
Power supply: 2pcs AA batteries