Tanzanian Split Keypad Prepaid Water Meters: LoRa Connection and STS Certification R100 In Tanzania, an innovative split keypad prepaid water meter is gradually changing the way residents pay for water. This water meter adopts advanced LoRa wireless communication technology and follows the STS (Standard Transfer Specification) certification standard R100, providing users with unprecedented convenience and security.

System Composition and Working Principle The system consists of two parts: the water meter (Meter) and the Customer Interface Unit (CIU). The water meter is installed outdoors, while the CIU is placed indoors for easy operation by the user. Both communicate via RF LoRa technology, ensuring stable communication even at a visual distance of up to 1 mile.

Convenient Water Purchase: Consumers can enter water purchase tokens on the CIU, and the token information is immediately transmitted to the water meter via LoRa to complete the recharge process. This simplifies the water purchase process, allowing residents to easily purchase the required water volume. Transparent Inquiry: The CIU is equipped with an LCD display, allowing users to conveniently view various data of the water meter, including token acceptance/rejection records, account balance, historical water consumption, and more. This transparency enhances user trust and satisfaction. Tamper-Proof Design: Since the water meter and CIU are separate, and communication is based on the secure LoRa protocol, any operation on the CIU does not affect the data accuracy or operating status of the water meter itself, effectively preventing tampering and fraud.

Social Impact This split prepaid water meter not only improves the convenience of residents’ lives but also promotes the rational use of water resources. It provides a reliable income protection tool for water supply companies while also bringing a more transparent and efficient water management experience to users. By reducing unnecessary waste and supporting precise billing, this water meter helps build a more sustainable urban water management system.

In summary, Tanzania’s split keypad prepaid water meter, combining modern communication technology and strict security standards, aims to improve people’s quality of life while promoting the digital transformation of public services. Its unique design and functions will undoubtedly have a positive impact on local communities.

Features

a) DN15, 20 and 25 up to DN100.

b) STS compliant algorithm standard

c) Dual strainer design of particle proof

d) Up to 300 meters communication range between meter and CIU

e) LCD display

f) Brass body cold water type

g) Valve closes on tamper and battery loss

h) Low credit and low battery alarm

i) Data retention in absence of power

j) AMR / AMI functions (optional)

Key benefits

1) Easy installations with no need to setup extra wires

2) Compatible with mobile money such as Tigopesa MPESA, Airetel

3) Stable accuracy, free of calibration after years operations

4) Setting for free basic water, emergency credit, arrear management policy

5) Supports drive-by reading and AMR/ AMI applications ( optional)

6) Remote reading and valve control on / off

7) Low operational and inventory cost and free of maintenance

Specifications:

Maximum Permission Error (MPE)

Q1≦Q≦,Q2 MPE =+ 5% Q2≦Q≦Q4, MPE= + 2% (For hot water metering, MPE=+ 3%)

Dimensions and diagram

Advantage Of Single Phase Electric Meter

1) Easy to deploy and maintenance

2) Increased tamper protection

3) Low operational cost

4) Optical port offers simple interrogation

5) Broad range of engineering settings

6) 15 year designed lifespan

FAQ

1. What can you supply?
A: We can supply custom Prepaid Electricity Meters, STS Prepaid Meters, Single Phase Electric Meter and so on, all kinds of Electric Meter.

2. Are OEM and ODM available?

* Yes, they are. As a professional Electricity Meters manufacturer, we offer OEM and ODM service.

3. How about your product warranty?

* We offer one-year warranty upon delivery.

4. How about the aftersales support?

* We will offer on-time response for online enquiries from oversea users. Please feel free contact us by email, Ali-Trade, WhatsApp, WeChat and SKYPE.

Calin, as derived from China League of Innovation, dates  back to the year 2006  when our team developed the new generation of CPU card electronic prepaid kilo-watt hour meter for China State Grid. Now there are over 1,000,000 pcs this type of smart prepayment electric meters operating  as key revenue protection devices for utilities and service providers in and out of China. 

Each member of Calin R&D team  ever served in top rank Chinese meter companies and contributed to the rapid development of smart metering industry in China. With vast forefront field experience and expertise, Calin offer a broad metering product range, comprising of conventional electric meters, water meters, prepaid meters, wireless communication meters, vending and management systems, AMR / AMI smart metering solutions, consulting, training and support.

Calin is the forerunner of prepaid metering industry in China. Our products and solutions are all developed on the concept of revenue protection and better management, and thus enjoy very high reputation in the industry. Even now China is supplying components, complete products as in OEM, and meter electronic design to many other meter manufacturers. With this OEM and trade partners, Calin’s business has expannded to over 30 countries and regions worldwide. 

To share with our clients the benefit from our constant innovation and commit to our clients’ request is Calin’s forever unchanging principle. Running away from responsibility is always condemed. Calin will keep servicing our clients with our best innovation and commitment to create best mutual benefit.