SONOFF SPM-4Relay Smart Stackable Power Meter 4 Relay Module

SONOFF SPM-4Relay Smart Stackable Power Meter  <br> The SONOFF smart stackable metering system realizes smart management with overload protection, metadata monitoring and electricity statistics. It supports up to 128 channels (up to 32 SPM-4Relay modules), a maximum current of 20A per channel, allows monitoring of 180 days of electricity consumption data, and management of each channel individually. The SPM-Main control panel allows 8Gb-32Gb SD memory card for secure local data storage. It is a high-performance professional smart home tool for managing homes, office buildings, industrial buildings or even shopping centres, enabling energy consumption monitoring for residents or tenants. <b>Note: module requires SPM-Main control panel</b>, which is sold separately. <br> <b>Features: </b> The SPM-Main communicates with the cloud through Ethernet or WiFi using EWeLink app (Android, iOS), and communicates with the SPM-4Relays through RS-485, which allows for multi-terminal and stable long-distance data transmission. Remote on/off - you can switch all channels on and off remotely anytime, anywhere. Synchronisation status - check the actual status of the relay (on or off) using the app. DIN rail mounted, like the control panel, to fit the electrical cabinet. With on/off buttons. Housing material made of flame-retardant V0 PC plastic. Protection for all channels against overload, overvoltage, overcurrent. <br> <b>Specifications: </b> 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 (flame-retardant). Mounting: on DIN rail. Connectionl: RS485. Operating temperature: -10°C~+40°C. Operating humidity: 5%-95% (non-condensing). Weight: 584g. Colour: white. Certification: CE/UKCA/FCC/ROHS. <br> <b>Warranty: </b>24 months.  <img src=https://www.eurodigital.lt/usistema/Vartotojai/Naujienos/SPM-MAIN_1.jpg> <img src=https://www.eurodigital.lt/usistema/Vartotojai/Naujienos/SPM-MAIN_2.jpg> <img src=https://www.eurodigital.lt/usistema/Vartotojai/Naujienos/SPM-MAIN_3.jpg> <img src=https://www.eurodigital.lt/usistema/Vartotojai/Naujienos/SPM-MAIN_4.jpg>