Specification Brand EWeLink Model CZV20Wireless Standard Zigbee3 0Wired Communication M BUS RS485App Platform eWeLinkOS Support Android OSOperating Temperature 20°C to 50°COperating Humidity ≤80 RHShell Material Flame retardant PC or ABSDimension 87mm x 92mmValve Sizes Available DN15 DN20 DN25Valve Body Material CopperValve Body Pressure 1 6 MpaValve Body Temperature 5 75°CFeatures 1 Voice Control Compatible with Amazon Alexa Google Assistant YandexAlice and Salute Smart Home for hands free voice control 2 Remote Control Control the opening and closing of the water valve via the eWeLink app even when you are not at home 3 Timing Control Schedule the valve to automatically open or close at specific times for convenience 4 Waterproof Design IP65 waterproof suitable for outdoor use 5 Smart Home Connectivity Integrates with other smart home devices for automated and intelligent control systems Package Includes 1 x EWeLink CZV20 Smart Zigbee3 0 Water Valve DN15 DN20 DN25 Optional