1) Actively report meter counter periodic timing. 2) Valve closing and opening can be controlled remotely. 3) Support prepaid and pre-order 4) With warning system,can send alarm prompts when battery undervoltage,abnormal measurement, pre-purchase and pre-paid reache the threshold. 5) Can set different emergency water consumption according to different usersBuilt-in memory,with large capacity storage function, can save up to 24 monthsof frozen data.