This is open sources Homekit device, fully compatible with Homekit but not certified by Apple.
 
Specification:
 
Chipset: ESP8285
Power: <=0.5W
Voltage range: AC 100-250V, (50/60Hz)
Max current: 16A
Transmission mode: Wi-Fi communication
Dimensions: (L)40*(W)40*(H)20mm
Color: White
Humidity: 5%-95%
Wireless Frequency: 2.4Ghz
Working Temp: ﹣20℃-75℃