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High Accuracy Smart Water Meter Cold Water Meter WMFK-P300 With Valve Control Unit

Minimum Order Quantity : 100 Price : Negotiable
Packaging Details : Carton Packaging Delivery Time : 30 days
Payment Terms : T/T Supply Ability : 2000 per day (based on the number of the order)
Place of Origin: Changsha, Hunan Brand Name: Willfar Information Techonology Co., Ltd.
Certification: OIMLR49/ISO4064/EN14154/STS IEC62055-41 Model Number: WMFK-P300

Detail Information

Color: Black/Blue Material: Brass
Communication Protocol: STS, LoRa Brand: Willfar Information
Place Of Origin: Changsha Hunan Level Of Protection: IP68
High Light:

remote water meter


cold water meter

Product Description

STS Prepaid Wireless Smart Cold Water Meter WMFK-P300 with Valve Control Unit


Company Profile

Willfar Information Technology Co., Ltd.

- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”



1. The WMFK-P300 which consists of User Interface Unit (UIU) , wireless valve control unit(VCU) and water meter.
2. The water meter is a rotary piston water meter designed for measuring flows of cold potable water. It is a high reliable measurement instrument, which is comply with OIMLR49/ISO4064/EN14154 standards. It is an ideal product that can be used in residential area.
3. Accuracy class of water meter exceeds Class C(R160), Material of body is engineering plastic .
4. The UIU acts as a remote display and keypad for water meter, and it could be connected with meter by RF interface .
5. The prepayment module of VCU conform to the STS standard IEC62055-41


              High Accuracy Smart Water Meter Cold Water Meter WMFK-P300 With Valve Control Unit 0

High Accuracy Smart Water Meter Cold Water Meter WMFK-P300 With Valve Control Unit 1


Technical Parameters


Item Parameter
Meter Type Volumetric
Nominal diameter(mm) 15 20
Valve length(mm) 80
Meter length(mm) 110 130
Permanent flowrate Q3(m3/h) 2.5 2.5 4
Q3/Q1 R160
Accuracy class Class 2
Error Q1QQ2 5%
Q2QQ4 2%
Types of Indicating device combination of analogue and digital devices
Indicating range 0~99999.99995
Temperature class T30
Water pressure class MAP10(10bar),MAP 16(16bar)
Pressure-loss class Δp63(0.63bar)
Installation position H,V
The installation sensitivity class U0/D0
Electromagnetic and Environmental class E1,B
Battery life-time 5 years(typical)
Radio Frequency Band (433~435)MHz,(470~510)MHz
Maximum Transmit Power 50mW,100mW
Valve life-time 7000 times(typical)
Work Environment 0.1~50℃,≤93%RH
IP code IP68




OIMLR49/ISO4064/EN14154/STS IEC62055-41




1. Separation design of water meter and control valve , which can be installed H/V and can be used independently.
2. Separation design of water meter and UIU,
3. the water meter can be installed in a place where you can't touch it .
4. IP68 protection



Basic Functions

1. LCD display
2. Prepayment, Max.8 steps of water tariff
3. Insufficient water warning
4. Self-defined overdraft
5. Anti-storage (purchase limitation)
6. Anti-magnetic Interference & record
7. Low-Battery detection & record
8. Anti-tamper detection & record
9. History data
Advanced Functions
1. Support purchase water by mobile
2. Holidays Management
3. Non switch-off during off-duty
4. Monthly free consumption water
5. Collect taxes and fee by water charges
6. Anti-leak detection



Residential and commercial




Nominal size(mm) L1(mm) L2(mm) H(mm) W(mm)
15 195 215 151 110
20 215 235 151 110

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