WiFi Smart Energy Meter 3 Phase 4 Wire APP Remote Monitoring DIN Rail Smart Power Meter with Switch On Off Item Type: WiFi Smart Energy Meter Material: PC flame retardant Model: DTS6619 Frequency: 50 60HZ Rated Current: 3x5(80)A Limit Voltage Range: 85~300V (L~N) Accuracy: Class 1 Starting Current: 40mA (minimum measurable value) Voltage Circuit: <2W 10VA WiFi: 802.11b g n, only supports 2.4GHz network, not compatible with 5GHz network Relay Control: Meter relay signal output, used to control the switch of AC contactor (Note: The meter has two options: relay function and no relay function) Installation: 35mm standard guide rail