 Model No: AK-200FC/P  Gas detected: LPG, Natural gas, H2  Semiconductor  Working voltage: 110VAC/220VAC, 12VDC-20VDC  Operating Frequency: 433MHZ/315MHZ (optional)  Size: 115mm*71mm*43mm  Weight: 228g/pc  PackageSize: 58.5cm*28.5cm*53.3cm  CtnWei(kg): 24.68kg