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    Precision Industrial Sensors & Switches

    Ensure accurate monitoring and control with fiber optic, humidity, and flow sensors, tailored for precise measurement and enhanced automation reliability.

    Optimize your industrial processes with our cutting-edge sensors and switches. Our comprehensive range features fiber optic cables, oxygen sensors, humidity sensors/transmitters, flow meters, and microswitches/miniature switches to meet your diverse sensing and switching needs. Whether you're optimizing industrial processes, monitoring environmental conditions, or enhancing automation systems, our sensors and switches provide the precision and reliability you need for seamless operations and data-driven decision making. Shop now for cutting-edge sensors and switches to optimize your industrial automation.

    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Radwell is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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    BANNER ENGINEERING S18AW3LPQ1

    BANNER ENGINEERING

    S18AW3LPQ1

    PHOTOELECTRIC SENSOR, EZ-BEAM S18 SERIES, POLARIZED RE, TRO, 2 METER RANGE, 20-250 VAC INPUT, SPST-SOLID-STATE OUTPUT, LIGHT OPERATE, MICRO 4-PIN QUICK DISCONNECT TERMINATION
    ✓ IN STOCK!
    $209.08 Buy Surplus As Low As $114.49
    $114.49
    Repair Yours $300.00
    BANNER ENGINEERING SMA912LVQD

    BANNER ENGINEERING

    SMA912LVQD

    RETROREFLECTIVE SENSOR, VALU-BEAM SERIES, 9 M RANGE, 130 VAC, 500 MA, THREADED MOUNT
    ✓ IN STOCK!
    $456.25 Buy Surplus As Low As $273.75
    $273.75
    BANNER ENGINEERING S18SP6FF100

    BANNER ENGINEERING

    S18SP6FF100

    PHOTOELECTRIC SENSOR, S18 SERIES, EPOXY ENCAPSULATED, BARREL-MOUNT, EZ-BEAM, 10-30 VDC, FIXED FIELD, 2 METER CABLE, COMPLIMENTARY PNP OUTPUT, 100 MM SENSING RANGE, (30326)
    ✓ IN STOCK!
    $198.75 Buy Surplus As Low As $119.25
    $119.25
    BANNER ENGINEERING S18SP6DQ

    BANNER ENGINEERING

    S18SP6DQ

    PHOTOELECTRIC SENSOR, S18 SERIES, EPOXY ENCAPSULATED, BARREL-MOUNT, EZ-BEAM, DIFFUSE, 10-30 VDC, 9 METER CABLE LENGTH, COMPLEMENTARY PNP OUTPUT, 100 MM MAX SENSING DISTANCE, M12 4-PIN, INTEG ...
    ✓ IN STOCK!
    $100.00 Buy Surplus As Low As $60.00
    $60.00
    BANNER ENGINEERING S18SN6RQ

    BANNER ENGINEERING

    S18SN6RQ

    29506 - EZ-BEAM S18 SERIES: RECEIVER; RANGE: 20 M; INPUT: 10-30V DC; OUTPUT: COMPLEMENTARY NPN; QUICK-DISCONNECT CONNECTOR
    ✓ IN STOCK!
    $73.91 Buy Surplus As Low As $44.35
    $44.35
    Repair Yours $300.00
    BANNER ENGINEERING S18SN6FF50Q

    BANNER ENGINEERING

    S18SN6FF50Q

    PHOTOELECTRIC SENSOR, EZ-BEAM S18 SERIES: FIXED FIELD, RANGE: 50 MM, INPUT: 10-30 VDC, OUTPUT: COMPLEMENTARY NPN, EURO M12 4-PIN INTEGRAL QD, (30867)
    ✓ IN STOCK!
    $198.75 Buy Surplus As Low As $119.25
    $119.25
    BANNER ENGINEERING S18AW3FF100Q

    BANNER ENGINEERING

    S18AW3FF100Q

    30886 - EZ-BEAM S18 SERIES: FIXED FIELD; RANGE: 100 MM; INPUT: 20-250V AC; OUTPUT: SPST SOLID-STATE LIGHT OPERATE; MICRO 5-PIN QUICK DISCONNECT CONNECTOR
    ✓ IN STOCK!
    $217.54 Buy Surplus As Low As $130.52
    $130.52
    Repair Yours $300.00
    BANNER ENGINEERING S18AW3DLQ1

    BANNER ENGINEERING

    S18AW3DLQ1

    PHOTOELECTRIC SENSOR, EZ-BEAM, S18 SERIES, DIFFUSE, RANGE: 300 MM, INPUT: 20-250 VAC, OUTPUT: SPST SOLID-STATE LIGHT OPERATE, MICRO 4-PIN QUICK DISCONNECT CONNECTOR, (35147)
    ✓ IN STOCK!
    $138.75 Buy Surplus As Low As $83.25
    $83.25
    BANNER ENGINEERING S186EQ

    BANNER ENGINEERING

    S186EQ

    PHOTOELECTRIC SENSOR, EZ BEAM, S18 SERIES, EMITTER, OPPOSED, 20 M, INFRARED, 10/30 VDC, M12 4-PIN, CYLINDRICAL, (29507)
    ✓ IN STOCK!
    $62.00 Buy Surplus As Low As $37.91
    $37.91
    BANNER ENGINEERING RSBLVAG

    BANNER ENGINEERING

    RSBLVAG

    PHOTOELECTRIC SENSOR, MAXI-BEAM, POLARIZED RETRO, RANGE 0.3 - 4.5 M, 25812
    ✓ IN STOCK!
    $355.00 Buy Surplus As Low As $213.00
    $213.00
    BANNER ENGINEERING QS186LE11Q8

    BANNER ENGINEERING

    QS186LE11Q8

    PHOTOELECTRIC SENSOR, RANGE: 15 M, INPUT: 10-30 VDC, (02757)
    ✓ IN STOCK!
    $136.25 Buy Surplus As Low As $81.75
    $81.75
    BANNER ENGINEERING OASBFX

    BANNER ENGINEERING

    OASBFX

    DISCONTINUED BY MANUFACTURER, ANALOG OMNI-BEAM, INFRARED HIGH POWER GLASS FIBER, RANGE: DEPENDS ON FIBER, INPUT: BY POWER BLOCK, OUTPUT: 0 TO 10VDC, CABLE DEPENDS ON POWER BLOCK, NO REPLACEM ...
    ✓ IN STOCK!
    Buy Surplus As Low As $246.55
    $246.55
    Repair Yours $300.00
    BANNER ENGINEERING OASBF

    BANNER ENGINEERING

    OASBF

    DISCONTINUED BY MANUFACTURER, SENSOR BLOCK, ANALOG, OMNI-BEAM SERIES, INFRARED, 880 NM, GLASS FIBER OPTIC, OUTPUT: 0 TO 10 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $304.42
    $304.42
    Repair Yours $300.00
    BANNER ENGINEERING MRB

    BANNER ENGINEERING

    MRB

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC CHASSIS BASE, SCREW TERMINALS, W/ RELAY BR-2
    ✓ IN STOCK!
    Buy Surplus As Low As $35.40
    $35.40
    Repair Yours $300.00
    BANNER ENGINEERING MQDC-430

    BANNER ENGINEERING

    MQDC-430

    QUICK DISCONNECT CABLE,EURO-STYLE, 4-PIN STRAIGHT CONNECTOR, 9 M (30 FT) IN LENGTH, NICKEL-PLATED BRASS COUPLING NUT, (27142)
    ✓ IN STOCK!
    $77.00 Buy Surplus As Low As $46.20
    $46.20
    BANNER ENGINEERING IT13S

    BANNER ENGINEERING

    IT13S

    SENSOR, 17342 - OPPOSED MODE, INDIVIDUAL GLASS FIBER, 36 LONG, 0.062 DIAMETER BUNDLE, STAINLESS STEEL SHEATH, THREADED SENSING TIP
    ✓ IN STOCK!
    $146.25 Buy Surplus As Low As $87.75
    $87.75
    BANNER ENGINEERING IAT26S

    BANNER ENGINEERING

    IAT26S

    FIBER OPTIC SENSOR, GLASS TYPE, RIGHT-ANGLE BEAM EXIT, 5/16" X 24 DIMENSIONS, THREADED BRASS END TIP, (17374)
    ✓ IN STOCK!
    $270.00 Buy Surplus As Low As $162.00
    $162.00
    BANNER ENGINEERING IAT2.51S

    BANNER ENGINEERING

    IAT2.51S

    FIBER OPTIC SENSOR, GLASS FIBER SERIES, DIFFUSE-REFLECTIVE SENSOR, 4MM FIBER CORE, RIGHT-ANGLED SENSING, INDIVIDUAL FIBER SIDE
    ✓ IN STOCK!
    Buy Surplus As Low As $137.43
    $137.43
    BAUMER ELECTRIC OHDM 16P5001/S14

    BAUMER ELECTRIC

    OHDM 16P5001/S14

    PHOTOELECTRIC POSITION SENSOR, DIFFUSE, 300 MM DETECTION RANGE, PNP, 675 MM WAVE LENGTH, 30 VDC, 200 MA, 4-PIN CONNECTOR, IP67, (10236806)
    ✓ IN STOCK!
    $1,647.00 Buy Surplus As Low As $989.00
    $989.00
    BANNER ENGINEERING LR400

    BANNER ENGINEERING

    LR400

    DISCONTINUED BY MANUFACTURER, REMOTE SENSOR, EMITTER, 2.4 METER RANGE, 2 METER CABLE, PAIR WITH PT400 RECEIVER, USE WITH MICRO-AMP MA3-4 & MA3-4P MODULATED AMPLIFIERS, (16312)
    ✓ IN STOCK!
    Buy Surplus As Low As $327.69
    $327.69
    BANNER ENGINEERING LR250

    BANNER ENGINEERING

    LR250

    DISCONTINUED BY MANUFACTURER, REMOTE SENSOR: EMITTER, RANGE: 2.4 M, USE AMPS: MICRO: MA3-4 MA3-4P, MAXI: CM SERIES, 2 M (6.5 FT) CABLE, (16310)
    ✓ IN STOCK!
    Buy Surplus As Low As $35.82
    $35.82
    BANNER ENGINEERING L4C6

    BANNER ENGINEERING

    L4C6

    41517 - FIXED FOCUS FIBER LENS, ACCEPTS M4 THREADED FIBERS, BEAM SPOT DIAMETER 0.25 MM AT 6 MM
    ✓ IN STOCK!
    $55.00 Buy Surplus As Low As $33.00
    $33.00
    BANNER ENGINEERING IT26SM600

    BANNER ENGINEERING

    IT26SM600

    (17361), FIBER OPTIC SENSOR, HIGH TEMPERATURE, GLASS FIBER, REFLECTIVE, 3.2 MM CORE DIAMETER, 25 MM MINIMUM BEND, STAINLESS STEEL MONOCOIL, #5/16-24 THREAD
    ✓ IN STOCK!
    $257.50 Buy Surplus As Low As $154.50
    $154.50
    BANNER ENGINEERING IR23SMCSC

    BANNER ENGINEERING

    IR23SMCSC

    FIBER OPTIC CABLE, RECTANGULAR, 3.2 MM FIBER CORE, (20517)
    ✓ IN STOCK!
    $161.00 Buy Surplus As Low As $70.75
    $70.75
    ALLEN BRADLEY 47BN1-1003L

    ALLEN BRADLEY

    PHOTOSWITCH

    47BN1-1003L

    PHOTOELECTRIC 10FT
    ✓ IN STOCK!
    Buy Surplus As Low As $237.86
    $237.86
    Repair Yours $300.00
    ALLEN BRADLEY 40146-007-58

    ALLEN BRADLEY

    40146-007-58

    DISCONTINUED BY MANUFACTURER, LIMIT SWITCH ASSEMBLY, 4 BLADES, RESET BUTTON
    ✓ IN STOCK!
    Buy Surplus As Low As $29.27
    $29.27
    CUSTOM CONTROL SENSORS 604P21

    CUSTOM CONTROL SENSORS

    604P21

    PRESSURE SWITCH, DOUBLE SNAP, PISTON SENSOR, ADJUSTABLE SET POINT RANGE, 300-3000 PSIG (20.7-207 BAR) INCREASING, 180-2780 PSIG (12.4-192 BAR) DECREASING, 125/480 V
    ✓ IN STOCK!
    $763.58 Buy Surplus As Low As $408.04
    $408.04
    Repair Yours $300.00
    CONTROLOTRON 994DN5GS-3

    CONTROLOTRON

    994DN5GS-3

    FLOW METER
    ✓ IN STOCK!
    $3,005.10 Buy Surplus As Low As $1,248.71
    $1,248.71
    Repair Yours $1,090.98
    CARLO GAVAZZI EO-1804-TBOS

    CARLO GAVAZZI

    ELECTROMATIC

    EO-1804-TBOS

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, 20/230 VAC, 20/500 MA, 2 WIRE
    ✓ IN STOCK!
    Buy Surplus As Low As $68.64
    $68.64
    BANNER ENGINEERING SMW915D

    BANNER ENGINEERING

    SMW915D

    PHOTOELECTRIC SENSOR, VALU-BEAM, DIFFUSE MODE, 760 MM SENSING DISTANCE, 12-28 VAC/DC, SPDT, 2 METER CABLE, RED LIGHT SOURCE, 20 MS RESPONSE TIME, 26164
    ✓ IN STOCK!
    Buy Surplus As Low As $106.64
    $106.64
    BANNER ENGINEERING SME312LPQD

    BANNER ENGINEERING

    SME312LPQD

    PHOTOELECTRIC SENSOR, MINI-BEAM EXPERT SERIES, 10-30 VDC, NPN/PNP, MINI-BEAM, POLARIZED RETRO, MEASUREMENT RANGE: 3 M, RESPONSE TIME: 0.5 MS, TURN ON DELAY TIME: 1000 MS, IP67, (53717)
    ✓ IN STOCK!
    $221.03 Buy Surplus As Low As $132.62
    $132.62
    Repair Yours $300.00
    BANNER ENGINEERING SME312CV2QD

    BANNER ENGINEERING

    SME312CV2QD

    PHOTOELECTRIC SENSOR, MINI-BEAM EXPERT, VISIBLE RED, 65.0 NM, CONVERGENT, FOCAL POINT: 43 MM, INPUT: 10/30 VDC, OUTPUT: BIPOLAR: 1 NPN, 1 PNP, EURO M12, 5-PIN, INTEGRAL QD, (53705)
    ✓ IN STOCK!
    $257.50 Buy Surplus As Low As $154.50
    $154.50
    BANNER ENGINEERING SME312CV

    BANNER ENGINEERING

    SME312CV

    PHOTOELECTRIC SENSOR, MINI-BEAM EXPERT, VISIBLE RED, 650 NM WAVELENGTH, CONVERGENT, 16 MM FOCAL POINT, 10-30 VDC INPUT, BIPOLAR OUTPUT, 1 NPN / 1 PNP, 2 M (6.5 FT) CABLE LENGTH, (53701)
    ✓ IN STOCK!
    $246.25 Buy Surplus As Low As $187.15
    $187.15
    Repair Yours $300.00
    BANNER ENGINEERING SMB46S

    BANNER ENGINEERING

    SMB46S

    48748 - BRACKET: S; MATERIAL: 14 GAUGE 316 STAINLESS STEEL
    ✓ IN STOCK!
    $47.50 Buy Surplus As Low As $36.10
    $36.10
    BANNER ENGINEERING SMB46L

    BANNER ENGINEERING

    SMB46L

    BRACKET, STAINLESS STEEL, BASIC RIGHT ANGLE, (48747)
    ✓ IN STOCK!
    $40.00 Buy Surplus As Low As $30.40
    $30.40
    BANNER ENGINEERING SMB30SC

    BANNER ENGINEERING

    SMB30SC

    BRACKET, COMPACT 30 MM SWIVEL, BLACK REINFORCED THERMOPLASTIC POLYESTER, WIDE RANGE OF ARTICULATION, HARDWARE INCLUDED, (52521)
    ✓ IN STOCK!
    $22.50 Buy Surplus As Low As $13.50
    $13.50
    BANNER ENGINEERING SMA990LT

    BANNER ENGINEERING

    SMA990LT

    26553 - VALU-BEAM: INFRARED 940 NM RETRO, RANGE: 9 M, INPUT: 10-250 V AC / 12-115 V DC, OUTPUT: BUILT-IN 6-DIGIT TOTALIZING COUNTER, 2 M (6.5 FT) CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $120.21
    $120.21
    Repair Yours $300.00
    BANNER ENGINEERING IR23S

    BANNER ENGINEERING

    IR23S

    GLASS FIBER, OPPOSED MODE, 910 MM LENGTH, 3.18 MM DIAMETER BUNDLE, STAINLESS STEEL SHEATH, RECTANGLE SENSING TIP, 0.81 MM X 9.7 MM ARRAY, (17336)
    ✓ IN STOCK!
    $216.25 Buy Surplus As Low As $129.75
    $129.75
    BANNER ENGINEERING IMTAP.753P

    BANNER ENGINEERING

    IMTAP.753P

    SENSOR, FIBER OPTIC, OPPOSED MODE, INDIVIDUAL GLASS FIBER, 36 " LONG, 1.2 MM DIAMETER BUNDLE, PVC SHEATH, MINIATURE THREAD, RIGHT ANGLE, 21074
    ✓ IN STOCK!
    $163.00 Buy Surplus As Low As $90.90
    $90.90
    BANNER ENGINEERING IMM.442P

    BANNER ENGINEERING

    IMM.442P

    DISCONTINUED BY MANUFACTURER, FIBER OPTIC SENSOR, HIGH TEMPERATURE, GLASS TYPE, ROUND HOUSING, REFLECTIVE, IN-LINE EXIT, 0.61 METER LENGTH, (21069)
    ✓ IN STOCK!
    Buy Surplus As Low As $82.35
    $82.35
    BANNER ENGINEERING IF23S

    BANNER ENGINEERING

    IF23S

    FIBER OPTIC CABLE, OPPOSED MODE, GLASS, 36 INCH LENGTH, 0.125 DIAMETER BUNDLE, STAINLESS STEEL SHEATH, 0.5 LENGTH FERRULED SENSING TIP, 17317
    ✓ IN STOCK!
    $157.50 Buy Surplus As Low As $94.50
    $94.50
    BANNER ENGINEERING IAT23S

    BANNER ENGINEERING

    IAT23S

    CABLE, OPPOSED MODE INDIVIDUAL, GLASS FIBER OPTIC CABLE, 36 INCHES LONG, 0.125 DIAMETER BUNDLE, STAINLESS STEEL SHEATH, RIGHT ANGLE THREADED SENSING TIP, 17307, ROHS COMPLIANT
    ✓ IN STOCK!
    $203.75 Buy Surplus As Low As $122.25
    $122.25
    BANNER ENGINEERING IAM.752P

    BANNER ENGINEERING

    IAM.752P

    17837 - FIBER OPTIC SENSOR - INDIVIDUAL FIBER - (FIBER SENSORS - GLASS FIBER SERIES), 2FT / 610MM LENGTH - CYLINDRICAL (SMOOTH) PROBE TIP SHAPE - STAINLESS STEEL SENSING END / GLASS FIBER / ...
    ✓ IN STOCK!
    $153.00 Buy Surplus As Low As $92.00
    $92.00
    BANNER ENGINEERING IA2.7S

    BANNER ENGINEERING

    IA2.7S

    CABLE, FIBER OPTIC, ANGLED, 4.8MM SENSOR END, SS MONOCOIL SHEATHING, (17827)
    ✓ IN STOCK!
    $171.25 Buy Surplus As Low As $130.15
    $130.15
    ANCHOR SCIENTIFIC PM30-NC-RED

    ANCHOR SCIENTIFIC

    PM30-NC-RED

    FLOAT SWITCH, 4.5 INCH PIPE, W0 MOUNT TYPE, NC, RED
    ✓ IN STOCK!
    $77.52 Buy Surplus As Low As $32.32
    $32.32
    ALLEN BRADLEY 872C-DH1NP8-E2

    ALLEN BRADLEY

    PHOTOSWITCH

    872C-DH1NP8-E2

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, 10-30 VDC OPERATING VOLTAGE, 20 MA LOAD CURRENT, NORMALLY OPEN OUTPUT, SOURCE, SHIELDED, 1.55 MM SENSING DISTANCE
    ✓ IN STOCK!
    Buy Surplus As Low As $72.64
    $72.64
    ALLEN BRADLEY 871T-R5J18

    ALLEN BRADLEY

    871T-R5J18

    DISCONTINUED BY MANUFACTURER, SENSOR, INDUCTIVE, DC, THREADED BARREL, STAINLESS STEEL BARREL, STAINLESS STEEL FACE, 3 WIRE, 18 MM DIAMETER, SHIELDED, NPN, MINI QD
    ✓ IN STOCK!
    Buy Surplus As Low As $154.84
    $154.84
    ALLEN BRADLEY 871T-R2A12

    ALLEN BRADLEY

    871T-R2A12

    INDUCTIVE SENSOR, PLASTIC FACE, THREADED STAINLESS STEEL BARREL, 12MM BARREL DIAMETER, 2MM SENSING DISTANCE, SHIELDED, N.O., NPN, 3 WIRE DC
    ✓ IN STOCK!
    Buy Surplus As Low As $132.41
    $132.41
    ALLEN BRADLEY 871TM-DH5NE18-N4

    ALLEN BRADLEY

    871TM-DH5NE18-N4

    INDUCTIVE SENSOR, METAL FACE, SHORT BARREL, 18 MM BARREL DIAMETER, DC, 5 MM SENSING DISTANCE, NORMALLY OPEN DC, DC MINI QUICK DISCONNECT
    ✓ IN STOCK!
    Buy Surplus As Low As $108.19
    $108.19
    ALLEN BRADLEY 871TM-DH4NP12-A2

    ALLEN BRADLEY

    871TM-DH4NP12-A2

    DISCONTINUED BY MANUFACTURER, PROXIMITY SENSOR, 3-WIRE DC STANDARD BARREL, 12 MM DIAMETER, UNSHIELDED, STAINLESS STEEL TUBULAR, METAL FACE, 4 MM SENSING DISTANCE, N.O., SOURCE (PNP)
    ✓ IN STOCK!
    Buy Surplus As Low As $79.72
    $79.72
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