Smart prepaid energy meter is known as a prepayment meter that needs to pay for energy credit before you use electricity, rather than paying after receiving a bill. It combines two main features: smart technology (remote communication) and a pay-as-you-go (prepaid) system. Residents can buy electricity credit through a smartphone App, online portal, SMS, or a local POS vendor by receiving a unique token (a 20-digit number), or remote charging that credit is automatically sent to your prepaid energy meter via AMI system's command by GPRS wireless communication signal.

However, once the credit hits zero, meter automatically cuts off the electricity supply. For utilities, meter directly eliminates the risk of unpaid bills if residents reject to pay. For users, it will help them control &optimize monthly bill to avoid sudden high bill.

Smart prepaid water meter is an advanced, electronic utility device that combines high-precision water flow measurement with an automated internal electronic valve and real-time digital communication modules. Smart prepaid water meter operates on a "pay-as-you-go" framework, meaning consumers purchase water credits in advance via mobile apps, AMI online platforms, or physical vendors.

Once the balance is exhausted, the integrated valve automatically shuts off the water supply until a new credit token or top-up is applied. When the balance drops to zero, the internal valve closes. Anti-tamper sensors shall close the valve if magnetic interference or physical opening is detected. It supports LoRaWAN, NB-IoT, or cellular protocols like GPRS/GSM to report consumption data directly to utility dashboards every few hours.

Smart DLMS data concentrator (Device Language Message Specification Gateway) is an industrial communication intermediary used in smart grid and smart utility infrastructure. Its primary purpose is to translate, aggregate, and route data between smart meters (electricity, water, or gas) and the utility company's central software, known as the HES (Head-End System) or MDM (Meter Data Management) system.

Even though smart prepaid energy meters speak DLMS, they might communicate locally over short-range networks like RS485, M-Bus, Zigbee, RF, or  PLC. As a bridge, it talks to the meters via these local low-power networks, translates or packages the data, and forwards it to the central utility servers over cellular (4G/5G/NB-IoT), Ethernet, or fiber optics.

FRP prepaid meter box (Fiber Reinforced Plastic) is frequently referred to in utility standards as an SMC (Sheet Molding Compound) or GRP (Glass Reinforced Plastic) meter box, which is an engineered industrial enclosure designed to house electricity, gas or water meters. As the utility meters are installed outdoors on building walls or utility poles, these boxes are heavily favored by utility companies over traditional metal (which rusts and poses shock hazards) and standard plastics (which degrade quickly under intense sunlight and heat).

Prepaid meter box has features like long life cycle of 10-15 years, strong glass fiber reinforcement, good anti-UV stabilization and high thermal resiliency to 120℃. Wall mounting and pole mounting is optional.