Description
SPM MAIN - STACKABLE INTELLIGENT ENERGY METER - MAIN UNIT
Connect up to 32 SPM-4Relay - One SPM-Main can be connected to 32 SPM-4Relays. Each SPM-4Relay has 4 isolated channels to help you manage devices more conveniently.
energy measurement - You can monitor power consumption by checking the eWeLink app on your mobile phone. Obtaining current, voltage and power easily.
Max. 20A/Gang - Each channel can withstand a maximum current of 20A, not afraid of high power load.
Communication via RS-485 - The SPM-Main communicates with the SPM-4Relays via RS-485, which enables stable, multiterminal long-distance data transmission.
overload protection - Once overcharge protection is enabled, it can protect your devices from burning out.
Product characteristics:
Brand: SONOFF
Model: SPM-Main
Color white
Material: PC V0
Micro SD memory: 8GB-32GB
Input: 100-240V ~50/60Hz 50mA Max
WiFi: 802.11 b/g/n 2.4GHz
Dimensions: 142.5 x 90 x 66.5 mm
Reference: SNSPM