Specifications
　Product Name: Smart Power Meter Switch 2CH
　Model: SA-7577
　Document Version: 1.6.0

　Power Supply: 110 – 240 VAC ±10% (AC)
　Power Consumption: < 1W
　Connectivity: Wireless (BLE / Thread)
　Wireless Frequency Band: 2400 – 2495 MHz
　Maximum Load (Total): 16A
　Maximum Load (Per Channel): 10A
　Output: 2 independent relay outputs
　Dimensions (H × W × D): 46.2 × 39.2 × 19 mm
　Weight: 25g
　Operating Temperature: 0°C ~ 40°C
　Storage Temperature: -10°C ~ 65°C
　Button: Pair/Reset ×1
　LED Indicator: Green ×1
　Software Settings: Fault notifications (instant voltage/current overload alerts)
　Certification: NCC

　Supported Load Types:
　　Resistive loads (e.g., incandescent lamps, heating devices)
　　Capacitive loads (e.g., capacitor banks, electronic devices, motor start capacitors)
　　Inductive loads (with RC snubber, e.g., LED drivers, fans, refrigerators, air conditioners)

Technical Specifications
　Data Acquisition Method: OpenThread (802.15.4)
　Power Measurement Speed: 0.5-second sampling interval
　Data Update Frequency: Adjustable to 1, 5, 10, or 15 minutes
　Real-Time Measurement Updates: 1 minute via Thread; 0.5 seconds locally
　Voltage Accuracy: ±3%
　Current Accuracy: ±3%
　Demand Calculation Method: 15-minute average power must not exceed contracted capacity
　Demand Calculation Interval: 15 minutes