Product Name: Smart Meter Switch 2CH
Equipment model: SA-7577
File version: 1.6.0

Power supply: 110 - 240 VAC ±10% (AC)
Power consumption: < 1 W
Connection method: Wireless (BLE/Thread)
Radio frequency band: 2400 - 2495 MHz
Maximum load (whole machine): 16A
Maximum load (per loop): 10A
Output: 2 independent relay outputs Dimensions (H x W x D): 46.2 x 39.2 x 19mm
Weight: 25g
Operating temperature: 0°C-40°C
Storage temperature: -10°C65°C
Button: Pairing/Reset button*1
LED light: G *1
Software settings: Fault notification (instant alarm for voltage or current overload)
Regulatory certification: NCC
Supported payload types:
- Resistive loads (such as incandescent bulbs, heating equipment)
- Capacitive loads (such as capacitor banks, electronic equipment, motor starting capacitors)
- Inductive loads (install RC absorbers, such as LED drivers, fans, refrigerators, air conditioners)

Technical specifications

Data acquisition method: OpenThread (802.15.4)
Power measurement speed: Sampling interval 0.5 seconds Data update frequency: Adjustable to 1, 5, 10 or 15 minutes Actual measurement data update: Thread is 1 minute, local measurement is 0.5 seconds Voltage measurement error: 3%
Current measurement error: 3%
Demand calculation method: 15-minute average power shall not exceed the contracted capacity Demand calculation interval: 15 minutes