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    37 Results.
    SIERRA MONITOR 5100-02-IT

    SIERRA MONITOR

    5100-02-IT

    DISCONTINUED BY MANUFACTURER, GAS SENSOR MODULE, 4-20 MA OUTPUT, 24 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,664.48
    $1,664.48
    Repair Yours $1,196.00
    SIERRA MONITOR 5100-03-IT-A1-01-00-0-0

    SIERRA MONITOR

    5100-03-IT-A1-01-00-0-0

    IT SERIES GAS SENSOR MODULE, OXYGEN %VOL, ALUMINUM ENCLOSURE, 3/4 INCH NPT, SENTRY, RS- 485, 4-20MA, AND DIGITAL INPUT, IT STANDARD (NONE 5100-28-IT), STANDARD PROTECTION, INTEGRAL SENSOR
    ✓ IN STOCK!
    $2,943.35 Buy Surplus As Low As $1,593.97
    $1,593.97
    Repair Yours $1,311.00
    SIERRA MONITOR 5200-03-IT

    SIERRA MONITOR

    5200-03-IT

    SENSOR CELL, O2 IT, (COUNTRY OF ORIGIN = USA) SCHEDULE B CODE = 8531.10.0045
    $889.00 Buy Surplus As Low As $534.00
    $534.00
    SIERRA MONITOR 5100-2

    SIERRA MONITOR

    5100-2

    COMBUSTIBLE SENSOR MODULE 2A 20VDC
    ✓ IN STOCK!
    Call For Availability
    SIERRA MONITOR 4501-05

    SIERRA MONITOR

    4501-05

    OBSOLETE, TOXIC GAS SENSOR MODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $677.10
    $677.10
    Repair Yours $624.43
    SIERRA MONITOR 5358-01

    SIERRA MONITOR

    5358-01

    CALIBRATION ADAPTOR, STANDARD, FOR GAS MODULE
    ✓ IN STOCK!
    $114.43 Buy Surplus As Low As $67.67
    $67.67
    SIERRA MONITOR 4101-06

    SIERRA MONITOR

    4101-06

    CHLORINE GAS SENSOR MODULE 0-10PPM 4-20MA
    $1,431.00 Buy Surplus As Low As $859.00
    $859.00
    Repair Yours $721.00
    SIERRA MONITOR 4101-03

    SIERRA MONITOR

    4101-03

    GAS SENSOR MODULE
    Buy Surplus As Low As $1,470.00
    $1,470.00
    Repair Yours $1,250.00
    SIERRA MONITOR 520002ITAL

    SIERRA MONITOR

    520002ITAL

    DISCONTINUED BY MANUFACTURER, SENSOR
    Buy Surplus As Low As $299.00
    $299.00
    Repair Yours $300.00
    SIERRA MONITOR 414A-2

    SIERRA MONITOR

    414A-2

    PCM ERROR COUNTER
    $120.00 Buy Surplus As Low As $60.00
    $60.00
    SIERRA MONITOR SPL21824

    SIERRA MONITOR

    SPL21824

    TRANSMITTER, SPARE PART, FOR 5100-XX-IT GAS SENSOR MODULE
    $1,802.85 Buy Surplus As Low As $1,030.20
    $1,030.20
    Repair Yours $822.00
    SIERRA MONITOR 5200-05-IT

    SIERRA MONITOR

    5200-05-IT

    HYDROGEN SULFIDE (H2S) 0-100 PPM, ELECTROCHEMICAL SENSOR.
    $872.00 Buy Surplus As Low As $436.00
    $436.00
    Repair Yours $415.00
    SIERRA MONITOR 4101-02

    SIERRA MONITOR

    4101-02

    COMBUSTIBLE GAS SENSOR MODULE, 3 WIRE LOOP TYPE, LOOP RESISTANCE:800OHM AT 28VDC, 400OHM AT 21VDC, 20-30VDC INPUT VOLTAGE, 40MA, OPERATING RANGE: -40 TO 75CELSIUS
    $260.58 Buy Surplus As Low As $131.30
    $131.30
    SIERRA MONITOR 5100-02-IT-S1-02-00-0-0

    SIERRA MONITOR

    5100-02-IT-S1-02-00-0-0

    DISCONTINUED BY MANUFACTURER, COMBUSTIBLE GAS MONITOR SS, 4-20MA, RTU 485 INTERFACE
    Buy Surplus As Low As $1,177.00
    $1,177.00
    Repair Yours $997.00
    SIERRA MONITOR 5100-02-IT-A1-01-00-0-0

    SIERRA MONITOR

    5100-02-IT-A1-01-00-0-0

    COMBUSTIBLE MONITOR, IT SERIES, GAS DETECTOR, A1 ALUMINUM, 3/4 INCH NPT, 24VDC INPUT, 10-30VDC NOMINAL, FIXED LED DISPLAY, 4 WATT
    $2,640.02 Buy Surplus As Low As $1,493.79
    $1,493.79
    Repair Yours $1,192.00
    SIERRA MONITOR FPC-N34-0893

    SIERRA MONITOR

    FPC-N34-0893

    DISCONTINUED BY MANUFACTURER, FIELD SERVER, 9-30VDC, 12-24VAC, 2.5W, SERIAL-ETHERNET, PROTO-NODE, 3 PORTS:, RS-485+ETHERNET+RS-485
    Buy Surplus As Low As $166.65
    $166.65
    SIERRA MONITOR 2001-00

    SIERRA MONITOR

    2001-00

    COMBUSTIBLE GAS MONITOR, GAS SENSOR, SINGLE-GAS DETECTOR, 9-24 VDC INPUT, 1000 PPM METHANE, 5 - 35 DEGREES C RANGE
    $1,119.00 Buy Surplus As Low As $603.98
    $603.98
    Repair Yours $541.00
    SIERRA MONITOR FPC-N34-0855

    SIERRA MONITOR

    FPC-N34-0855

    DISCONTINUED BY MANUFACTURER, FIELD SERVER, 9-30VDC, 12-24VAC, 2.5W, SERIEL-ETHERNET, PROTO-NODE, 3-PORT, RS-485+ETHERNET+RS-485
    Buy Surplus As Low As $173.73
    $173.73
    Repair Yours $200.00
    SIERRA MONITOR 5000

    SIERRA MONITOR

    5000

    PC BOARD FUME DETECTOR
    Buy Surplus As Low As $1,200.00
    $1,200.00
    Repair Yours $1,000.00
    SIERRA MONITOR 5100-1

    SIERRA MONITOR

    5100-1

    DISCONTINUED BY MANUFACTURER, HYDROGEN SULFIDE SENSOR, 24 VDC, -4-140 DEGREES F, 0-99% RELATIVE HUMIDITY
    Buy Surplus As Low As $1,560.00
    $1,560.00
    Repair Yours $1,100.00
    SIERRA MONITOR 5200-1

    SIERRA MONITOR

    5200-1

    SENSOR HYDROGEN SULFIDE FOR 5100-1
    Buy Surplus As Low As $162.00
    $162.00
    Repair Yours $300.00
    SIERRA MONITOR 5100-28-IT-S1-01-02-00

    SIERRA MONITOR

    5100-28-IT-S1-01-02-00

    GAS SENSOR MODULE IR COMBUSTIBLE
    Buy Surplus As Low As $1,410.00
    $1,410.00
    Repair Yours $1,200.00
    SIERRA MONITOR 5100-03

    SIERRA MONITOR

    5100-03

    DISCONTINUED BY MANUFACTURER, OXYGEN SENSOR 2AMP 20VDC 0-25PERCENT
    Buy Surplus As Low As $840.00
    $840.00
    SIERRA MONITOR 5100-28-LEL

    SIERRA MONITOR

    5100-28-LEL

    GAS SENSOR MODULE LEL ETHANOL CUSTOM
    Buy Surplus As Low As $1,320.00
    $1,320.00
    Repair Yours $1,100.00
    SIERRA MONITOR 5100-05

    SIERRA MONITOR

    5100-05

    TOXIC GAS LEAK DETECTOR FOR HYDROGEN SULFIDE 0-100PPM
    Buy Surplus As Low As $1,380.00
    $1,380.00
    Repair Yours $1,150.00
    SIERRA MONITOR 4100-34

    SIERRA MONITOR

    4100-34

    SENSOR ASSY GROUP B
    $1,272.00 Buy Surplus As Low As $764.00
    $764.00
    Repair Yours $636.00
    SIERRA MONITOR 5200-02-IT-SS

    SIERRA MONITOR

    5200-02-IT-SS

    REPLACEMENT SENSOR FOR COMBUSTIBLES 0-100% LEL. CATALYTIC BEAD SENSOR. STAINLESS STEEL.
    $911.00 Buy Surplus As Low As $547.00
    $547.00
    Repair Yours $455.00
    SIERRA MONITOR 5100-05-IT-A1

    SIERRA MONITOR

    5100-05-IT-A1

    SENSOR MODULE, HYDROGEN SULFIDE, 0-100 PPM, LED DISPLAY, ELECTROCHEMICAL, AL, 3/4" NPT ENTRY
    $1,739.00 Buy Surplus As Low As $870.00
    $870.00
    Repair Yours $826.00
    SIERRA MONITOR 5100-02-IT-S1-02

    SIERRA MONITOR

    5100-02-IT-S1-02

    COMBUSTIBLE GAS MONITOR SS, 4-20MA, RTU 485 INTERFACE
    Call For Availability
    SIERRA MONITOR FS-EZ3-MOD-BAC

    SIERRA MONITOR

    FS-EZ3-MOD-BAC

    MODBUS GATEWAY, MODBUS RTU, EZ GATEWAY, MODBUS TCP, BACNET MS/TP, BACNET IP, 500 POINT, 1 ETHERNET PORT, 1 SERIAL PORT, 24 VAC, 12 - 24 VDC, 3 W, 125 - 250 MA, 10.16 CM X 2.8 CM X 6.8 CM
    $1,700.75 Buy Surplus As Low As $963.54
    $963.54
    Repair Yours $769.00
    SIERRA MONITOR FS-8915-38-QS

    SIERRA MONITOR

    FS-8915-38-QS

    CONTROLLERS ACCESSORY KIT, KIT IS FOR ROUTERS, EZ GATEWAYS AND QUICKSERVERS MODELS STARTING WITH FS-QS-2010, F QUICKSERVERS, 110/220V
    $106.19 Buy Surplus As Low As $64.29
    $64.29
    SIERRA MONITOR FPC-N34-0822

    SIERRA MONITOR

    FPC-N34-0822

    DISCONTINUED BY MANUFACTURER, FIELD SERVER, 9-30VDC, 12-24VAC, 2.5W, SERIAL-ETHERNET, PROTO-NODE, 3 PORTS:, RS-485+ETHERNET+RS-485
    Buy Surplus As Low As $168.67
    $168.67
    Repair Yours $300.00
    SIERRA MONITOR FSQS-1230-0705

    SIERRA MONITOR

    FSQS-1230-0705

    DISCONTINUED BY MANUFACTURER, SERIAL-ETHERNET MODULE, MODBUS, FULLY CONFIGURABLE, QUICKSERVER SERIES, TWO BAS DRIVERS, INPUT: 9-30VDC/12-24VDC, 2.5 WATTS, ABILITY TO INTERFACE UP TO 250 POIN ...
    Buy Surplus As Low As $353.42
    $353.42
    Repair Yours $290.43
    SIERRA MONITOR FPC-N34-0816

    SIERRA MONITOR

    FPC-N34-0816

    DISCONTINUED BY MANUFACTURER, RER BACNET PROTONODE, FIELDSERVER, SERIAL ETHERNET, UNIVERSAL GATEWAY, ETHERNET-10/100 ETHERNET PORT, INPUT / 2.5 W / 9-30 VDC / 12-24 VAC, SAME AS THERMAL SOLU ...
    Buy Surplus As Low As $818.65
    $818.65
    Repair Yours $817.61
    SIERRA MONITOR FPC-N54-0529

    SIERRA MONITOR

    FPC-N54-0529

    DISCONTINUED BY MANUFACTURER, PLC COMMUNICATIONS MODULE, SINGLE PORT, MODBUS, SCREW TERMINALS, RACK MOUNT
    Buy Surplus As Low As $280.03
    $280.03
    Repair Yours $232.42
    SIERRA MONITOR FPC-N34-0614

    SIERRA MONITOR

    FPC-N34-0614

    DISCONTINUED BY MANUFACTURER, PROTONODE GATEWAY, 9-30 VOLT DC, 12-24 VOLT AC, 2.5 W, SCREW TERMINALS (9X)
    Buy Surplus As Low As $528.63
    $528.63
    Repair Yours $421.76
    SIERRA MONITOR FS-ROUTER-BAC

    SIERRA MONITOR

    FS-ROUTER-BAC

    DISCONTINUED BY MANUFACTURER, ROUTER, BACNET, DUAL, 2.5 W, 9-30 / 12-24 V, 2 RS-485 PORT
    Buy Surplus As Low As $350.00
    $350.00
    Repair Yours $291.00
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