SPM-MAIN/SPM-4RELAY
Manuals
SONOFF Smart Stackable Power Meter
This stackable power meter realizes smart management with overload protection, metadata monitoring and electricity statistics.
Do You Have These Same Problems?
Want to check the monthly electricity consumption of the tenements without leaving home?
Want to realize the smart monitoring of the whole shopping mall?
Want to prevent elements from burning out like bitcoin mining machine?
RS-485 Communication Allows for "Smart Stackable"
The SPM-Main communicates with the cloud through Ethernet or WiFi, and communicates with the SPM-4Relays through RS-485, which allows for multi-terminal and stable long-distance data transmission.
Power Metering
Want to know the power consumption changes of each stall? Want to realize the unified management of the whole shopping mall? By checking eWeLink App on your mobile phone, you can monitor the electricity usage without leaving home. Through the eWeLink App, you can obtain the power consumption through a touch.
Overload Protection
Once the overload protection is enabled, you do not need to worry about electrical appliances being burned out, which helps remove potential safety hazards. In addition, you can also set the overload delay activated to avoid spurious triggering.
128 Isolated Channels & Each Up To 20A
One SPM-Main can be connected 32SPM-4Relays. Each SPM-4Relay has 4 isolated channels to help the tenant to solve the problem in electric charge sharing. Each channel can support maximum current of 20A, no fear of high power load.
Get Over 180-day of Energy Usage Data
Available SD card local storage. You can insert the SD card into SPM-Main to download and check over 180 days of your energy usage history at any time of the day through HTTP API. No need to worry about missing the important information.
*Note: The only capacity supported is 8-32GB, SDHC card. The SD card is not included.
Package
Simple Installation
You can install the SPM-Main and SPM-4Relays step by step following the user manual. With the guide rail, they can be installed into the right place with ease to make your room looks simple and tidy.
Quick Start
Specifications
Model
SPM-Main
Color
White
Shell material
PC V0
Micro SD card storage range
8GB-32GB
Input
100-240V~ 50/60Hz 50mA Max
Wi-Fi
802.11 b/g/n 2.4GHz
Dimension
142.5x90x66.5mm
Model
SPM-4Relay
Color
White
Shell material
PC V0
Input
100-240V ~ 50/60Hz 20A/Gang 80A/Total Max
Output
100-240V ~ 50/60Hz 20A/Gang 80A/Total Max
Dimension
250x90x66.5mm
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