块，内部的数字滤波，也可以很好的抑制来自电网的工频干扰。
产品型号:
IBF-485-U1,IBF-485-U2,IBF-485-U3,IBF-485-U4,IBF-485-U5,IBF-485-U5,IBF-485-U6,IBF-485-U7,IBF-485-U8,
IBF-485-A1,IBF-485-A2,IBF-485-A3,IBF-485-A4,IBF-485-A5,IBF-485-A6,IBF-485-A7,IBF-485-A8,
IBF-232-U1,IBF-232-U2,IBF-232-U3,IBF-232-U4,IBF-232-U5,IBF-232-U5,IBF-232-U6,IBF-232-U7,IBF-232-U8,
IBF-232-A1,IBF-232-A2,IBF-232-A3,IBF-232-A4,IBF-232-A5,IBF-232-A6,IBF-232-A7,IBF-232-A8,