The Sonoff POWCT Wi‑Fi current probe 100 A is compared against several alternative monitoring devices: Atlo ATLO-LE1-TUYA, electro base Single Phase 1F-4DIN 4121 Wi‑Fi Multi‑Tariff, Sonoff AirGuard CO2 SAWF-08P, and Atlo ATLO-LE3-TUYA. All options feature Wi-Fi connectivity for remote access, but they serve different core purposes: most measure electrical consumption, while one monitors indoor air quality. The primary practical differences lie in the installation method (a clamp-on current probe versus terminal-connected DIN-rail meters), measured parameters, and smart home ecosystem compatibility.
⚙️ The table below compares the key specifications of the products, including measurement type, capacity, installation method, connectivity, and supported platforms.
| Parameter | Sonoff POWCT | Atlo ATLO-LE1-TUYA | electro base 1F-4DIN 4121 | Sonoff AirGuard CO2 | Atlo ATLO-LE3-TUYA | Practical significance |
|---|
| Device type | Current probe & energy meter | Electric energy meter | Single-phase electricity meter | Air quality meter | Electric energy meter | Defines the core purpose: electrical monitoring versus indoor environmental tracking. |
| Range / Parameters | 100 A (current and energy) | Energy consumption | Energy consumption (multi-tariff) | CO2 level | Energy consumption | Provides different monitoring metrics suited for power circuits or ventilation assessment. |
| Installation | Around conductor (current probe) | DIN-rail / distribution board | DIN-rail (4 modules) | Desktop or wall-mounted | DIN-rail / distribution board | Affects installation complexity: the current probe avoids the need to break or disconnect power lines. |
| Connectivity & platform | Wi-Fi (Sonoff app) | Wi-Fi (Tuya Smart) | Wi-Fi (remote reading) | Wi-Fi (Sonoff app) | Wi-Fi (Tuya Smart) | Determines smart home integration and the mobile application used for monitoring. |
◎ The table below evaluates which product is most suitable for different user needs, use cases, and deployment scenarios.
| Use case | Recommended product | Why |
|---|
| Monitoring overall energy use without rewiring | Sonoff POWCT | Uses an external 100 A current clamp that installs easily around a single conductor without breaking the circuit. |
| Integrating electrical metering into the Tuya ecosystem | Atlo ATLO-LE1-TUYA or Atlo ATLO-LE3-TUYA | Provides digital energy measurement with native support for the Tuya Smart platform. |
| Tracking electricity consumption across multiple tariffs | electro base Single Phase 1F-4DIN 4121 | Supports multi-tariff accounting and mounts directly onto a standard distribution board. |
| Checking indoor carbon dioxide levels and air quality | Sonoff AirGuard CO2 | Features an LCD screen and specialized sensors to monitor room air parameters in homes or offices. |
The Sonoff POWCT Wi‑Fi current probe 100 A differs from standard electricity meters by employing a 100 A non-invasive current clamp designed to wrap around a single conductor, eliminating the need for terminal-block wiring inside a distribution panel. It is best suited for users who want straightforward real-time current and energy tracking via the Sonoff app without complex electrical installation. Buyers looking for Tuya platform integration, multi-tariff utility billing, or indoor air quality monitoring will find more suitable alternatives among the other options.
