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4-20/0-20mA to 0-5kHz/0-20kHz/0-200kHz Frequency Pulse Signal Converter, Find Details and Price about Frequency Pulse Signal Converter Pulse Signal Converter from 4-20/0-20mA to 0-5kHz/0-20kHz/0-200kHz Frequency Pulse Signal Converter - Shenzhen Jie Shengda Technology Co., Ltd.