
Featuring a flame-retardant PC outer casing and core components with magnetic latching relays, our design sustains continuous 25A+ loads through overspec pure copper wiring. This ensures fail-safe operation - high load 25+ thermal stress casing without combustion.

Real-Time Monitoring
Accumulated Energy, 0.01kWh precision. Electricity Cost, Auto-calculated with triple rates. Switch Status, Real-time relay position. Working Time. Electrical Parameters: Live Voltage, 0.1V resolution (80-300V), Live Current, 0.01A accuracy (±1%). Instant Power and Power Factor (PF).

Timer and Usage Limits
Timer for scheduled ON/OFF, Daily/weekly automation. Auto-adjust with sunrise/sunset. Energy Saver, Shut down heavy loads at peak rates. Usage limits for kWh Countdown, Auto cutoff at preset value. Safety Guard, Prevent device overburning (e.g. heaters), Budget Lock, Precise monthly cost control.

Summer/Winter dual-period time-of-use billing
dual-period time-of-use (TOU) billing for summer and winter periods. Within each period, users can independently set peak, valley, and flat electricity rates (three-tier rate structure). The device provides 24/7 automatic energy cost calculation, ensuring accurate billing year-round.

Dual-Mode Smart Control
Cloud Remote Control, Global access via Tuya/Smart Life apps, Instant switching command. Real-Time Sync, Device status pushed to phone instantly. Local Manual Control: Physical Button, Dedicated ON/OFF key on device. Zero-Latency, Magnetic relay instantaneous action.

Over/Under Voltage Protection, Overload Protection
The Over/Under Voltage Protection monitors the supply voltage and automatically disconnects power to safeguard equipment in case of abnormally high or low voltage, this feature can be combined with an Auto-Reclose function to automatically restore power once voltage returns to normal.

Offline Data Logging
Decade-Long Data Vault, 512MB MicroSD Card Standard (free with machine purchase). Full-Parameter Logging: Voltage/Current/Power/Rates/PF/Working Time/Events. Dual-File Architecture: ddmmyy-D.csv, Minute-level metrics (1 record/min), ddmmyy-E.csv, State-change events (on-demand).