SONOFF Smart Stackable Power Meter - 20A/Gang Energy Monitoring & Overload Protection

The SONOFF Smart Stackable Power Meter (SPM) is an advanced energy monitoring device designed for real-time power consumption tracking, overload protection, and smart energy management. Whether you're managing rental properties, commercial buildings, or high-power appliances, this power meter offers reliable monitoring with local storage and remote access via the eWeLink App.

Key Features:

✅ Smart Power Metering & Energy Statistics – Track real-time power usage and analyze historical energy consumption via the eWeLink app.

✅ Overload Protection – Prevents appliances from overheating or short-circuiting, ensuring safe power management at all times.

✅ Supports High-Power Loads – Each channel supports up to 20A, making it perfect for heavy-duty appliances, including industrial machines, mining rigs, and high-power electronics.

✅ Expandable System with RS-485 Communication – One SPM-Main can control up to 32 SPM-4Relays, allowing for a total of 128 isolated power channels.

✅ Micro SD Card Data Storage – Store and retrieve up to 180 days of energy usage data using an 8GB-32GB SD card.

✅ Remote Monitoring via eWeLink App – Access live energy statistics, power logs, and device settings from anywhere with Wi-Fi or Ethernet connectivity.

✅ DIN Rail Mounting for Easy Installation – Securely mount the power meter with a clean and professional setup.

Specifications:

• Model: SONOFF SPM Smart Stackable Power Meter

• Modules: SPM-4Relay

• SPM-4Relay:

  • Voltage: 100-240V, 50/60Hz
  • Max Load Per Channel: 20A
  • Total Max Load: 80A
  • Dimensions: 250 x 90 x 66.5mm

• Material: PC V0 flame-retardant shell

• Communication Method: Wi-Fi & RS-485

• Compatibility: Works with all smart home systems & eWeLink App

• Certifications: CE, FCC