Water meter:

Mechanical pulse meter for drinking water networks with pulse output, giving 1 pulse per revolution (100 liters of water for area meters)
The water meter is wired to a data collector located nearby (pit wall).Data collection:
The low volume mass volume data collector, which works well under extreme operating conditions, continuously collects flowing water volume data. It records the hourly water consumption and the minimum volume (the longest time between two successive quantitative pulses in a given hour). The mass-flow minimum value is a characteristic of a given area that best indicates the state of water loss in the network.It compiles a daily consumption data set from the recorded consumption data, summarizing the hourly water flow through the meter for the last 30 hours, the minimum volume by mass, and the meter number and cumulative water consumption after installation.The A thus obtained compiles a daily data packet from the recorded consumption data.
Transmitter (Communicator):
Data logger is connected wirelessly, so called. transmitter. Depending on the strength of the network coverage, the transmitter can be placed either in the immediate vicinity of the data logger or, in case of poor reception, on the ground.

The transmitter sends an SMS to the GSM network once a day, typical of the daily drinking water districts. Each bit of the SMS contains meaningful information. A data content in hexadecimal:
Æ'ĪBÆ&#rÆ("ÄÆ)"lÆų"WÆ3"ĪÆ2"UÆ1"ĨÆ/_ņÆ0_xÆ-%!Æų"%Æų#9Æ,Ī5Æ0"ÆÆ-"3Æ((4Æ-ĪhÆ-";Æ0_RÆ+#$Æ*#vÆ'%eÆ'#üÆ%Ī1Æ%)öÆ&&tÆ((-Æ,"/Æ2_lų"!Æ'qVÆ'ÉÆÆÆÆ3r
Data from the GSM network is sent to the operator's server, where hourly or daily information specific to the drinking water network can be retrieved from the stored daily / monthly data. Measuring shafts are characterized by a low-power data logger (mass volume minimum meter) and transmitter that can operate in extreme operating conditions, and is capable of operating for 6-8 years without battery replacement. It compiles a daily data set from the recorded consumption data, summarizing the water flow through the meter for the last 30 hours, the minimum value for the mass flow, and the meter number and cumulative water consumption after installation. The data packet, which is composed of the water volume measurement data thus obtained, is transmitted, via wireless data transmission, to a GSM communication device installed in its vicinity.