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Upgraded 4-20mA 0-24V Current Signal Generator, Riiai Current Voltage Adjustable Analog Simulator, Real-time Curve, Multiple Signal Types, 3000ma-h USB Rechargeable, Preset Value, for PLC Testing: Amazon.com: Industrial & Scientific
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Amazon.com: REPWEY Programmable Thermocouple K J PT100 to 4-20mA Converter TC RTD Input 4-20mA Output Head-Mounted Temperature Transmitter with USB (Color : Type K TC Input) : Industrial & Scientific
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Discontinued] UCTRONICS DC 0-10V 0/4-20mA Current Voltage Signal Generator, USB Power Supply Interface
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