4 Channel Wifi Relay + 433Mhz RemotePower Supply Voltage:DC 5V / DC 7-32V / AC 90-250VWireless Standards:Wifi 2.4GHz b/g/nSecurity Mechanism:WEP/WPA-PSK/WPA2-PSKWorking Temperature:-20 Celsius DegreeWorking Humidity:≤80%Matarial:ABS4 Channel Wifi Relay1. Operating Voltage: DC 5-32V2. Control Mode: From App 3. Mode of transport: Wifi 4. System: for Android / for IOS 5. Remote control frequency: 433 MHZ 6. Wifi Work Frequency: 2.4G 802.11 b / g / n 7. Power Power Consumption of Rest: 80mA; if all relays are up, max 380mA 8. 1-Channel Switch:≤ 10A (Nominal Current ); voltage switch: ≤ 250 V 9. Insulation Resistance: 100 M ohm 10. Electric Shock Maximum Voltage: 1000 V 11. Relay Max Operating Time: 15 ms 12. Relay Max Release Time: 5 ms 13. Operating Temperature: -40 ~ 70 ° 14. Operating Humidity: 40% -80% RH 15. With Signal Indicator Lamp Relay Operation LampPackage Included:1 x WIFI Relay Switch Module For Wireless Smart Home For Android IOS