Product description: Zamel Supla LEW-02 - electricity monitor - 1-phase 100 A - WiFi - Android / iOS application
The LEW-02 is a smart WiFi electricity meter designed to measure power consumption in single-phase circuits. Using an SC-16 current transformer, the module provides semi-indirect measurement, allowing for energy flow analysis in both home and photovoltaic installations. Its compact housing (17.5 mm) allows for quick installation on a DIN rail , and measurement data is accessible remotely via the Supla app or the Supla Cloud panel. The LEW-02 allows for exporting results to files and integration with popular home automation platforms.

Zamel Supla LEW-02 - electricity monitor - 1-phase 100 A - WiFi - Android / iOS application.
Main features of the Zamel Supla LEW-02 meter
- Semi-indirect measurement: using the SC-16 current transformer (included)
- Bidirectional energy measurement: also ideal for PV installations
- 2.4 GHz WiFi communication: with integration via MQTT
- Data presentation: in the Supla application and Supla Cloud with the option of exporting to CSV, XLSX, ODS
- Support for Home Assistant, Grafana, Zabbix, Power BI: advanced real-time analytics
- High accuracy: measurement class 2 (±2%)
- LED indication: power supply status and energy consumption pulses (1000 imp/kWh)
- Compact design: only 1 DIN module wide
Energy meter connection diagram
Connecting the LEW-02 is simple and safe. The phase (L) and neutral (N) wires should be connected to the appropriate power terminals of the module . The SC-16 current transformer should be placed on the phase wire, in accordance with the direction of current flow (marked L → K). The transformer's output wires (S1 and S2) are connected to the lower measuring terminals of the module.

The LEW-02 monitor performs bidirectional semi-indirect measurement, making it suitable for single-phase photovoltaic installations.
Practical applications
The LEW-02 is used to monitor electricity consumption in households, commercial establishments, workshops, and single-phase photovoltaic installations . With its integration with Smart Home systems and data export capabilities, it is ideal for automated energy consumption analysis and building energy efficiency monitoring.
Technical specifications of Zamel Supla LEW-02
- Nominal voltage: 230 V AC
- Power consumption: 1.5 W
- Frequency: 50/60 Hz
- Communication: WiFi 2.4 GHz
- Transmit power: ERP < 20 mW
- Accuracy class: 2 (± 2%)
- Measurement type: semi-indirect, 100 A
- LED indication: power and consumption (1000 imp/kWh)
- Interfaces: MQTT, API, Supla Cloud
- Degree of protection: IP20
- Mounting: DIN rail TH-35
- Operating temperature: -10°C to 55°C
- Power terminals: L, N
- Transformer terminals: S1, S2
- Maximum wire cross-section: 2.5 mm²
- Dimensions: 90 x 17.5 x 66 mm
- Weight: 0.05 kg
Contents of the set
- LEW-02 Energy Monitor
- SC-16 current transformer


