WiFi Energy Meter 1–50A Tongou TOSA1 with Induction Sensor
Modelo: TOSA1 WiFi 1–50A- Sku: TONGPRO021
- Vendor: Tongou
Specifications
Product Description
The Tongou TOSA1 WiFi Energy Meter 1–50A with induction sensor (CT) is an intelligent accessory for electrical panels that measures voltage, current, power, and energy in real time and sends the data to the cloud via 2.4 GHz Wi-Fi. Designed for DIN rail installation, it supports 1P/1P+N and also 3P/3P+N configurations, making it versatile for homes, small businesses, or light industrial subpanels. With measurement class 1.0 and advanced alarm functions (over/undervoltage, overcurrent, overpower, and temperature), the TOSA1 provides visibility and control of consumption to optimize your bill and anticipate incidents.
Main Features
- Current range: 1–50 A with induction sensor (CT) for safe and stable reading.
- Wi-Fi 2.4 GHz communication (IEEE 802.11 b/g/n); Zigbee/LTE options available in the product family.
- Real-time measurements: voltage, current, active (direct) power and accumulated energy, as well as internal temperature.
- Smart alarms: overvoltage, undervoltage, overcurrent, overpower, and temperature; includes prepaid monitoring mode.
- Wide electrical compatibility: 100–240 V~ for 1P/1P+N and 100–240/380–415 V~ for 3P/3P+N; 50/60 Hz.
- DIN 35 mm mounting, compact modular format, and simple wiring with clearly identified terminals.
Advantages or Benefits
- Savings and control: detailed visibility of consumption to adjust habits, contracted power, or self-consumption strategies.
- Proactive safety: alerts for electrical anomalies that help prevent equipment failures and installation risks.
- Home automation integration: integrates into Smart Home ecosystems (Tuya/Smart Life family) and allows automations by energy, power, or temperature.
- Flexible installation: suitable for single-phase and three-phase; CT sensor without cutting the conductor in models of the family.
- Reliable data: accuracy class 1.0 with history and remote consultation from the app.
Purpose or Applications
Ideal for monitoring residential circuits (main outlets, air conditioning, water heater), businesses (POS, lighting, cameras), small technical rooms, or photovoltaic/self-consumption subpanels where you want to measure consumption and set alarm thresholds. Also useful for monitoring domestic charging points or specific loads with high energy use.
Technical Specifications
| Model | Tongou TOSA1 (TO-Q-SA1) |
| Measured current | 1–50 A (Imax 50 A) |
| Supported topologies | 1P/1P+N · 3P/3P+N |
| Nominal voltage | 1P: 100–240 V~ · 3P: 100–240 V~ or 380–415 V~ |
| Frequency | 50/60 Hz |
| Measurements | Voltage, current, active power (forward), energy (forward), internal temperature |
| Accuracy | Class 1.0 (≈1 %) |
| Connectivity | Wi-Fi 2.4 GHz (IEEE 802.11 b/g/n) |
| Functions | Over/undervoltage, overcurrent, overpower, and temperature alarms; prepaid mode; history |
| Mounting | DIN rail 35 mm · modular format |
| Environment | −25 °C to +60 °C; altitude ≤2000 m |
| MCB compatibility | Recommended with TOMD6-63 (Tongou family) |
Compatibilities
Complement this meter with TOMD6-63 circuit breakers, watertight modular enclosures (for example, Schneider Kaedra), copper ferrules and terminals (Sofamel), and, if desired, with intelligent circuit breakers from the Tongou family (e.g., TO-Q-SY2-JWT/JZT) for advanced automations. If you do not have internal links, you can search for these models in our collections.
The Tongou TOSA1 WiFi Energy Meter 1–50A is the professional solution to visualize your consumption, create alerts, and make informed decisions that reduce energy costs and increase the safety of your installation.
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WiFi Energy Meter 1–50A Tongou TOSA1 with Induction Sensor





