SONOFF SPM-4 smart module with 4 relays, DIN rail mount

SONOFF SPM-4 4-channel smart metering system module, SPM-Main expansion module. With energy consumption metering.
SONOFF smart metering system enables network overload protection, network metering monitoring, and electricity consumption statistics collection and storage. It supports up to 128 channels (up to 32 SPM-4Relay modules), 20A maximum current for each channel, allows you to monitor 180 days of electricity consumption data, and manage each channel separately. It is a high-performance professional smart home tool that allows you to monitor the electricity consumption of residents or tenants; designed for homes, office buildings, industrial buildings, or even shopping malls.
Note: the module requires an SPM-Main control panel to control it., which is purchased separately.
Features:
The module connects via RS485 to the SPM--Main control panel, which is controlled over the Internet via Ethernet or Wi-Fi using the "EWeLink" app (Android, iOS).
Remote On/Off - You can turn all channels on and off remotely anytime, anywhere.
Sync Status - Check the actual status of the relay (on or off) using the app.
Mounted on a DIN rail, like the control panel, suitable for an electrical cabinet.
Has mechanical on/off buttons.
The housing material is made of non-flammable PC V0 safety class plastic.
Protection for all channels against overload, overvoltage, overcurrent.
Technical data:
Compatible with: Sonoff SPM-Main.
Voltage: 100V~240V AC.
Frequency: 50/60Hz.
Current: max. 80A (20A per channel).
Number of channels: 4.
MCU: GD32F.
Dimensions: 250 x 90 x 66.5 mm.
Housing material: PC V0 (fireproof).
Installation: on DIN rail.
Connection to the control panel: RS485.
Operating temperature: -10°C~+40°C.
Operating humidity: 5%-95% (non-condensing).
Weight: 584g.
Color: white.
Certificates: CE/UKCA/FCC/ROHS.
Warranty: 24 months