H-D03-0004-000 RAEGuard 2 PID Transmitter Kit, ATEX/IECEx, 0.01 - 100 ppm Isobutylene Equivalent by Honeywell Analytics. The RAEGuard 2 PID operates on 10 to 28 VDC and provides an analogue (4-20 mA) three-wire signal output, and RS-485 Modbus digital signal output.
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