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  Microchip PIC18F2550-I/SP

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  Inor P/N: 70ISP30001 Type: IsoPAQ-30P

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  Tecsis [Wika] S2420 - alternative is P5D-4/-1...3b/4...20mA

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  Wasco X0-21Q3B/8369 (alternative is P500-31Q3B/8369)

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  Western model: W6200P161M1B1U10 alternative is P164592

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  Alco Controls FDB164 - alternative is ---P-502--8164--S

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  Alpha [Wittenstein] A06B-6111-H026-H550 AMP ISP26 TYPE A

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  Husky 2312450/9403060/F1620 (alternative is P 060108-3U8)

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  OGGIONI REL/ISP Double channel modular control cards with ON, Fault, Alarms and gas concentration percentage signaling by LED bar graph. With RS485 connection for connection to DCS and PC.