RTS-012L

The RTS-012L is an IoT power meter built for real-time power load monitoring. It measures voltage and other electrical values, stores them according to the customer's requirements, and transmits that data to a server over LTE. On the server side, a platform provides dashboard functionality — querying and storing statistics together with each device's real-time status — and administrators can remotely change the meter's instrumentation values and manage key device data.

The meter is intended for installation in feeder pillars and compact substations (CSUs) as an LTE-connected unit; the reference deployment for this design is Malaysia's TNB (Tenaga Nasional Berhad). In that kind of real-time energy management setup, metadata is collected, parsed, and stored on the device, then transferred to the national energy center's server over 4G/LTE. Because the device's status can be checked and its settings adjusted remotely from headquarters, the center does not need to dispatch an engineer to the site for routine checks or configuration changes.

The unit was designed with on-site workers in mind: every interface — LAN, RS485/RS232, and a USIM slot — sits on the front of the machine for quick, easy connectivity, and a 4.3-inch backlit touchscreen lets a technician set parameters and check data on-site without extra tools. Status LEDs on the front indicate the device's connection state and the LTE module's working status. On the rear side, the unit supports monitoring of up to 12 channels, giving a comprehensive read of power load and performance across multiple points from a single meter.

Internally, real-time load monitoring is built on CT (Current Transformer) and PT (Potential Transformer) connections: four current boards (META #1–4) measure the current on each phase, while a 3-phase voltage board measures all three phases via a PT connection. From these inputs the device measures voltage, current, power, energy, frequency, and power factor, and tracks max/min/average values for each. Measurements are written to a CSV file and stored in the device's own memory every 10 minutes, and the same data is sent on to the server for further analysis according to the administrator's policy.

Once an LTE SIM is inserted, the device automatically transmits its initial settings to the server, where the information is stored in the database for the administrator to manage from the web screen — including registering, modifying, deleting, or re-registering devices, with bulk registration available when many units need to be onboarded at once. The same web screen supports remote meta setting, so if a field engineer's on-site setting was wrong, or a policy change requires an update, the administrator can correct it remotely without sending anyone back out to the site.