Shelly PRO 4PM powermeter/switch 4-channel LAN WiFi BT

Size (HxWxD): 96x53x59 ±0.02 mm / 3.78x2.01x2.32 ±0.02 in
Mounting: DIN rail
Screw terminals max torque: 0.4 Nm / 3.5 lbin (green connectors)
Conductor cross section: 0.5 to 2.5 mm² / 20 to 14 AWG (green connectors)
Conductor stripped length: 6 to 7 mm / 0.24 to 0.28 in (green connectors)
Shell material: Plastic. Color: Black
Ambient temperature: -20 °C to 40 °C / -5 °F to 105 °F 
Humidity: 30 % to 70 % RH
Power supply voltage AC: 110 - 240 V
Power consumption: < 4 W 
Neutral not needed: No
Max switching voltage AC: 240 V
Max switching current AC: 16 A per channel, 40 A total
Sensors, meters...
Voltmeter (AC): Yes
Ammeter (AC): Yes
Internal-temperature sensor: Yes
Radio RF band: 2400 - 2495 MHz, Max. RF power: <20 dBm
Wi-Fi protocol: 802.11 b/g/n , Wi-Fi Range: Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
Bluetooth Protocol: 4.2 Bluetooth Range: Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)
CPU: ESP32-D0WDQ6 , Flash: 8 MB
Firmware capabilities
Schedules: 20
Webhooks (URL actions): 20 with 5 URLs per hook
Scripting: Yes
MQTT: Yes