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High sensitivity analog output digital valve control lora water meter

  • DN15-DN25

LoRa water meter




System structure diagram as follows

· server send commands to the data concentrator through network;
· concentrator transforms the received commands into radio signal and send the signal to the water meters;
· water meters respond and execute the commands accordingly;
· Water meters deliver the result or data back to the management center as per the original route after the actions finished.

· Quality Gurantee: Water meter for 1 year;
· Support install guide & test in site;
· Date sheet can be sent to other management system easily.


Brief introduction
LoRa wireless water meter adopts advanced wireless transmission technology, which transforms information of conventional mechanical water meter into electrical signal that stored by micro-electronics control circuit. It is able to automatically read the metering data via wireless remote network and control the close and open of the valve.

·With anti-magnetic interference function.
·With the battery voltage detection function.
·Module with automatic data storage function when power down and up, which assuring the data won’t lost when power down.
·With 7 layers 8 types of price to support market demand.
·The joint of the RF module and the base meter uses the integrated structure with built-in antenna, which reducing the damage of antenna during the process of installation;
·Using LoRa transfer mode can drastically extend the communication distance.
·The module use of deep dormancy time design is able to completely close the wireless module during the deep dormancy time period (not in operation during night time ), which drastically help to reduce power dissipation;
·Whole circuit board uses of ultra low power consumption design, power suuply by high capacity lithium battery and battery life over 6 years;
·Set up the metering devices by the handset reader and check the original data and data from meter reading;
·AMI function that supports the system is able to control of valve opening or closing on real-time.

Product features

·our lora water meter has high accuracy

·Type:dry dial/screw/seal

·Material:Cast Iron/brass

·Scenes to be used:home/apartment/domestic/indoor/house/residential/housing/garden/housing/commercial/general household/residential building/for residence/apartment /municipality/household/potable/domestic residential

·waterproof level:IP68

·Technical data conform to international standard ISO 4064.

·Accuracy:class b

·Water temperature: 0.1℃~50℃ ( 0.1℃~90℃ for hot water meter).

·fitting:Concentrator/Repeater/connctor/PCB/valve control/strainer/reading device/valve actuator/plastic cover/battery operated/coupling/pointer/components/counter/accessories/register/ball valve

·communication:lora/wireless remote/local internet/Private Protocol

Outline dimensional drawing



Nominal Diameter Length L Length L1 Width B Height H1 Height H2 Connecting Thread
mm d D
15 258 165 90 112 184 R1/2 G3/4B
20 299 195 90 112 184 R3/4 G1
25 345 225 90 114 186 R1 G11/4B

Technical specifications

Item Unit Details
Nominal diameter mm 15 20 25
Q3/Q1 R80/R100
Overload flow(Q4) m³/h 3.125 5 7.875
Nominal flow(Q3) m³/h 2.5 4 6.3
Transitional flow(Q2) m³/h 0.05 0.08 0.13
Minimum flow(Q1) m³/h 0.031 0.05 0.08
Accuracy class Class 2
Maximum indication 99999
Temperature class T30,T90
Pressure class MAP 10/MAP 16
Pressure loss class Δp63
Flow prefile sensitivity class U10/D5
Environmental class Class B
Electromagnetic environment class E1
Static current uA <10




Prepaid LoRa Gprs NB-IOT
composition Prepaid water meter IC card Reader Software LoRa water meter Concentrator Repeater Serve Platform GPRS water meter Serve Platform NB-IOT water meter NB-IOT transmission base station Serve Platform
Communication band None



GSM850/EGSM900 CDMA1X800/EGSM900
Advantage Transmit information through IC card,charge accurately install and operate easily. LAN transmission data low power,Suitable for intensive installation real-time reading control. Wide area network,data transmission without distance limitation and debugging,low sample order cost. Wide coverage,low power consumption,low cost and slower rate.

The stand-alone version of the software can only be read and controlled on designated computer.Backup user data when replacing a pc.

Greater impacts by obstacles and limited communication distance (up to 1 km).
On-site debugging is a heavy workload.
Occasionally there will be data packet loss,
high transmission rate, relatively high power consumption.
At present, NB technology is not fully mature and the coverage of base stations is low.
Battery capacity more than 6 years more than 6 years more than 6 years more than 6 years
Software payment Free Free Free Free
Cost Almost no use cost. Electricity and flow
charges for concentrators.
Mobile data traffic charge of 2g data traffic in water meter. Mobile data traffic charge of 2g data traffic in water meter.
necessary part of sample purchase Prepaid water meter IC card
Card Reader
Lora water meter Concentrator GPRS water meter

NB-IOT water meter

software Stand-alone application B/S Cloudy serve platform B/S Cloudy serve platform B/S Cloudy serve platform
Software compatible YES YES YES YES



Water meter

1. How long is the battery life?

Using ER26500 batteries with a capacity of up to 9000 mAh and the frequency of reading meters once a day, the battery life can reach up to 8 years.

2. Waterproofing grade?

At present, the LoRa wireless water meter adopts the technology of full encapsulation and sealing. It uses the silicon gel packaging circuit board part, and the battery plug and socket is also sealed to reach the IP68 protection level.

3.Can your product run underwater?

This product can be soaked in water, but soaking in water will affect the stability of signal transmission, because the signal transmission in water will be greatly affected

4. Can you make Lora ultrasonic valve-controlled water meter?

No, because the built-in valve will have a greater impact on the stability of the ultrasonic measurement, the higher the frequency of the switch valve, the greater the impact on the accuracy of measurement.

5. If the valve cannot be closed or opened, how can it be found and handled?

If the valve is blocked by sand and gravel flowing into the pipeline, the program in the water meter will try to execute the action of the on-off valve within 40S.

If the valve can not be switched normally, the water meter will give up the instruction and return the failure data to theplatform.

On the platform, the relevant information of the water meter can beviewed for the convenience of the management.


Pre-sales and after-sales service

1. Pre-sales service

Patient product introduction.

AMR system demonstration.

Project cases introduction.

Supporting sample order.

2. After-sales service

Instalation intructions, include software parts and water meters parts;

Support data butt to the third management system;

installation supervision, commissioning ad training on site;

Keep long time follow up & services even beyond warranty time.


Communication and serve platform

1. Does the GPRS wireless water meter need a concentrator or a collector?

No, because the GPRS wireless water meter uses the existing GPRS communication tower for data transmission, which is similar to the mobile phone signal transmission.

2.How many Lora water meter can be connetted into one concentrator?

At present, the maximum carrying capacity of one concentrator is

500 pieces.

Considering the actual installation density of the community, generally speaking, it will be much lower than this number.

3.What data can the platform collect from water meters?

At present, our platform can collect accumulative flow rate, battery voltage, upload time on the water meter, and ultrasonic LoRa can also collect instantaneous flow rate.

4. How does the concentrator transmit data?

The concentrator needs 220V power supply and uses GPRS to transmit data to the PC platform.

5. How about the transmission distance?

The distance of LoRa data transmission is mainly affected by the actual installation environment. In relatively spacious transmission environment, the transmission distance can reach 1000-1500 meters.

Generally speaking, the concentrator will be installed at the commanding heights of the community.

GPRS water meter Under the GPRS signal, the data uploaded by GPRS water meter is not affected by distance.

6.How do you know that the water meter is out of order and there is no data to return?

First, we can check the alarm function on the platform to see that the water meter has no data return, and then check the installation environment to see if there is obvious damage, and can use the initiative to trigger the water meter to be on-line way.

7. Is the platform free? Can it pay in advance?

It is free, and the administrator can pre-charge the amount of money

It is free, and the administrator can pre-charge the amount of money

on the platform and set up user information files for each useron the platform and set up user information files for each user.

8. Warranty?

All meters will be guaranteed against defects in workmsnship and meterials for a period of one (1) year from the date of acceptance. Defective meters or parts discovered within this period shall be replaced without charge upon return to the SHMETERS.

Company Information


You need a good solution for water metering---Catering all your needs. 

As the China’s professional manufacturer and distributor since 2013, we have developed a comprehensive water meter range and a complete solution for the Commercial ,agriculture, Industrial and Domestic market on Mechanical type water meter and smart water meters. Moving with the changes in technology and precision metering has been the mission of the company since its genesis and we are adding metering that can support water sustainability using. Since 2017, we start the export smart water meters to the whole world, and hope more and more countries and region people can save the water with us together with the smart technology and system. Nowadays, SHMETERS have already become one the main important exporter for water flow meters in China. 
We will provide your product to your hand in timely manner and keep you informed of process with your order throughout the whole sales. From the strictly QC inspection, strictly cost control and five star quality services, we believe that you will own a more solution on water metering.






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