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Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm

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Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm

Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm
Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm
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Large Image :  Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm

Product Details:
Place of Origin: China
Certification: CJ/T133-2012, GB/T778-2007
Model Number: SKZS
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: Negotiation
Packaging Details: Standard Export Package
Delivery Time: 5-35 days
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 5000000 pcs per year
Detailed Product Description
Standard: CJ/T133-2012, GB/T778-2007 Accuracy Class: 2.0, 1.0
Li-lon Battery: 3.6V(2Ah), 3.6V(3Ah0 Static Current: ≤ 5 UA
Working Current: ≤ 10mA Condition: Cool Water Meter 0-40℃; Hot Water Meter 0-90℃
High Light:

Irrigation Water Meter


Hot Water Meter

DN15mm 20mm 25mm Wireless Intelligent LoRaWan Smart Water Meter for House


Newest LoRaWAN Solution V1.2.pdf



The wireless intelligent water meter consists of remote basic water meter, wireless communication modules and other components. This product can complete the data collection of point-to-point through the gateway with low power consumption, long life and two-way data transmission. It provides reliable protection for the accurate collection of real-time data; Wireless water meter uploads data to the gateway everyday automatically, then the gateway uploads data to the network platform automatically; This product is simple in structure, easy to maintain and replace, and connect with no cables. So, it is easy to install.



1. Operating environment:

    Water temperature: 0.1℃~30℃

    Protection grade: IP68

2. Operation water pressure: 0.03MPa~1.0MPa

3. Pressure loss: ≤0.1MPa

4. Main Parameters:

Power Consumption Static current consumption (wireless module doesn’t include counting sensor) ≤10µA
Wireless current receiving power consumption ≤18mA
Wireless current emission power consumption About 120mA







RF center frequency 433MHz
Modulation LORA
Frequency bandwidth 125KHz,250KHz can be optional
RF power 20dbm(100mW) (Typical)
Transmission rate 0.25-50kbps (LoRaWAN)
Receiver sensitivity -143dBm @SF12/BW 125KHz
Power supply 3.6V lithium battery More than 10 years
Sampling Method Hall sensor, double pulse Pointer sampling at 0.01, addend when positive rotation, subtrahend when inverse rotation.

5. Range ratio and flow range



Q3 /Q1

Overload Flow


Common Flow


Demarcation Flow


Min Flow


Min m3 Max m3
m3/h m3
15 80 3.125 2.5 0.05 0.031 0.0001 9999.9999
100 0.04 0.025
20 80 5 4 0.08 0.05
100 0.064 0.04
25 80 7.875 6.3 0.126 0.079
100 0.10 0.063

6. Electromechanical Conversion Error ≤±0.5m3

7. Allowable Maximum Error:

From the minimum flow to the low zone that does not include the demarcation flow: ±5%;

From the demarcation flow to the high zone including the overload flow: ±2%.

8. Communication Distance:

City transmission distance: About 2km

The number of floors crossed: About 15 floors

9. Power Supply: The gateway needs an external 220V power supply;

10. All prepaid costs are stored in the meter reading system. Based on the collected data of water consumption, it is determined whether the user owes fees.


Communication Introduction

LoRaWAN is a set of communication protocols and system architectures designed for LoRa long-distance communication networks.

When the module is powered on, it automatically sends a join packet. If no reply from the gateway to the network, the join packet will be sent in intervals. After the module receives the network access permission message by the gateway, it pushes a packet of heartbeat data; Since then, it starts timing. Actively push a pack of heartbeat data at intervals of 6 hours.

The data upload mechanism can be timed or quantitative or both, and can also be customized on demand.

1. Frame Format(DL/T645-2007)

Specification Code
Frame initiator 68H



Address domain



Frame initiator 68H
Control code C
Data field length L
Data field DATA
Check code CS
Terminal code 16H

* Address field A0 to A5: Communication address of the meter.


2. Device uploads packets

Name Data Instruction
Leading FEFEFEFE  
Frame initiator 68H  
Address A5 A4 A3 A2 A1 A0 Low byte first when sending
Frame initiator 68H  
Control code 91H  
Length 0CH  
Data identification 00004200 Low byte first when sending
Data (Note 1) XXXXXXXX Low byte first when sending
Status word (Note 2) XXXX Low byte first when sending
Battery voltage XX 15.37×xxH=xxxxxmV
Reserved bytes XX  
Checksum CS  
Terminal code 16H  

Note1: The data format is defined as follows:

  Data Format Code System Unit Remarks
Accumulated Water Meter Reading XXXXXXXX BCD Tons

Cumulative water consumption

The decimal place defaults to 2 bits of data. The format is: XXXXXX.XX

Note2: Status word is defined as follows:

ST0   D7 D6 D5 D4 D3 D2 D1 D0
Definition   Mandatory state Strong magnetic interference Overdraft status Alarm status Voltage Valve status
Instruction Reserved

0:no mandatory

1: Forced

0: normal

1: Overdraft

0: normal

1: Overdraft

0: normal

1: alarm

0: normal

1:Under voltage


00: open

01: Off

11: Abnormal

ST1   D7 D6 D5 D4 D3 D2 D1  
Instruction         Reserved Reserved Reserved Reserved


  • Dimension and installation drawing

Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm 0









Length of connection thread (mm)
A.min B.min
15 165 86 G3/4B 10 12
20 195 86 G1B 12 14
25 225 86 G11/4B 12 16



Why Choose Us:

1. As a leading meters manufacturer, our products including: Energy Meter, Smart Electronics Meter, Smart Water Meter, Gas Meter and AMR system.

2. We own the factory and a R&D group of more than 30 persons.

3. We have 260 sets of production and testing equipments.

4. we have a high efficiency, innovative, serious management team and guarantee after-sales service.


Contact Details

Contact Person: Mrs. Ada Yang

Tel: +8615623095278

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