Calin's cutting-edge non-wired solution, the CA168-WS21, is a single-phase prepaid electricity meter specifically engineered for remote STS prepayment environments. This two-wire, 5(60) Amp (with an 80A option), keypad-based smart electric meter is housed in a compact BS5685 footprint case, making it an ideal choice for residential, commercial, and light industrial applications in less populated areas.
Manufactured under stringent ISO9001 standards, the CA168-WS21 features an IP54-rated protective class, ensuring durability and resilience in challenging conditions. Its operational voltage range spans from -40% to +20%, coupled with an enhanced RF immunity of 30V/m, enabling reliable performance even in harsh environments characterized by brownouts, lightning strikes, and frequent voltage dips.
The CA168-WS21 further distinguishes itself with a built-in GPRS modem, facilitating seamless communication with the back-end server via TCP/IP or VPN protocols. This feature enables periodic automatic meter reading, conducted remotely from the server side. Additionally, utility or service providers can effortlessly configure meter settings through GSM networks, streamlining operations and enhancing customer service.
In summary, the CA168-WS21 represents a compact and economical solution for AMR AMI smart metering setups, integrating the functionalities of a prepaid electricity meter, STS prepaid meter, and smart electric meter into a single, robust package. Its advanced features and robust construction make it an excellent choice for remote prepayment environments, where reliability and ease of use are paramount.

Main Features

a) STS standard encryption

b) Build-in load switch disconnects on tamper and credit zero

c) Adjustable power limit and consumption threshold

d) RS485 and IR optical ports

e) Audible and visual low credit alarm

f) Emergency credit and repayment control

g) Fraud detection

h) Operates in prepayment and credit mode

i) DLMS/COSEM , IEC62056 protocol compliant

Utility benefits

1) Quick and easy to install

2) Valuable real-time data

3) Flexible payment control

4) Allowed to do load control

5) Reduce day to day operational and maintenance cost

Specifications:

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.