Operating Temperature:0-60 Max. Current:30A Max. Voltage:110-250V Product Name:TEEJOIN NB-IOT New Technology Smart Home Function:Whole set smart home system Color:gold white black or customization Type:Wireless smart home automation Application:Free charge Wired or Wireless:Wireless Smart Home Control System Usage:Building, Villa, House, Hospital, University Interface:Touch screen Protocol:Zigbee, wifi, nb-iot Brand:TEEJOIN , OEM Show More