Sonoff SPM WiFi & LAN Smart Stackable Electricity Meter Power Meter Tasmota 14

Article description:

WiFi & Ethernet Smart stackable electricity meter SPM-Main / SPM-4Relay

Already flashed with the latest Tasmota firmware.

This stackable electricity meter enables intelligent management with lease protection, metadata monitoring and electricity statistics.

Using the Ethernet port you also have the option of controlling and evaluating the Tasmota version of the SPM even without WiFi.

Electricity consumption measurement: Would you like to know the development of the electricity consumption of the individual sales stands? Do you want to implement uniform management for the entire shopping center? With the eWeLink app on your mobile phone you can monitor electricity consumption without leaving home. With the eWeLink app you can view your electricity consumption immediately.

Passage protection: With the transfer protection activated, you no longer have to worry about electrical devices burning out, thereby avoiding potential safety risks. You can also activate the overload delay to avoid false triggering.

128 isolated channels & each up to 20A: 32SPM-4 relays can be connected to an SPM main. Each SPM-4 relay has 4 isolated channels. Each channel supports a maximum current of 20A, no fear of high current load.

Retrieve over 180 days of energy consumption data: Local storage available on SD card. You can insert the SD card into SPM-Main to download and check over 180 days of your energy consumption at any time of the day via HTTP API. YOU don't have to worry about missing important information.

Easy installation: You can install the SPM-Main and SPM-4 relays step by step using the operating instructions. With the guide rail, they are easy to install in the right place to make the room look simple and tidy.

Note: The SPM-Main main unit and the 4-relay of the stackable power meter must be used together. The main unit must be connected to at least 4 relays to function.

Special features of the Tasmota firmware

Implemented in Tasmota:

Up to 7 SPM-4Relay units, supporting up to 28 relays.

GUI optimized rotating energy display for 4 relays at the same time.

The button on the SPM-Main initiates a new scan of the SPM-4Relay units.

Blue LED indicates Tasmota WiFi status.

Yellow LED lights up when no ARM connection can be established.

Yellow LED flashes for 2 seconds when an ARM ESP CRC error is detected.

Ethernet support

WebUI display

Persistence for module mapping

Not yet implemented in Tasmota

GUI for the Overload Protection entry (managed by the ARM processor).

GUI for scheduling entry (managed by ARM processor).

SPI master for ARM (upload ARM firmware from ESP using EasyFlash).

Technical data SPM-Main:

Model: SPM-Main

Wi-Fi Type: IEEE 802.11 b/g/n 2.4GHz

Ethernet / LAN Port

Security protocols: WEP/WPA-PSK/WPA2-PSK

Size: 142.5 x 90 x 66.5 mm

Input voltage: 100V - 240V AC (50-60Hz) 50mA Max

Micro SD memory: 8-32GB SDHC (Not included)

Material: PC V0

Technical data SPM-4Relay:

Model: SPM-4Relay

Size: 250 x 90 x 66.5 mm

Input voltage: 100V - 240V AC (50-60Hz)

Max. Input power: 20A per channel / 80A 4 channels

Output voltage: 100V - 240V AC (50-60Hz) 50mA MaAx

Max. Output power: 20A per channel / 80A 4 channels

Material: PC V0