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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 Q196E

    BANNER ENGINEERING

    Q196E

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC EMITTER, 8M RANGE, 10/30VDC, 2M CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $95.71
    $95.71
    BANNER ENGINEERING SM312LVAG

    BANNER ENGINEERING

    SM312LVAG

    PHOTOELECTRIC SENSOR, POLARIZED, 2000 MM SENSING DISTANCE, 10/30 VDC, 150 MA, NPN/PNP, 2 M CABLE LENGTH, RED LED, LIGHT/DARK OPERATE, DISCRETE, THERMOPLASTIC, (25776)
    ✓ IN STOCK!
    $221.25 Buy Surplus As Low As $132.75
    $132.75
    BANNER ENGINEERING SM312LVAGQD

    BANNER ENGINEERING

    SM312LVAGQD

    PHOTOELECTRIC SENSOR, MINI-BEAM, POLARIZED RETRO, RANGE, 50 MM TO 2 M, INPUT, 10-30 V DC, OUTPUT, BIPOLAR, 1 NPN, 1 PNP, EURO M12 4-PIN INTEGRAL QD
    ✓ IN STOCK!
    $192.00 Buy Surplus As Low As $118.77
    $118.77
    BANNER ENGINEERING SM312LVAGQDP

    BANNER ENGINEERING

    SM312LVAGQDP

    PHOTOELECTRIC SENSOR, MINI-BEAM, POLARIZED RETRO, RANGE: 50 MM / 2 M, INPUT: 10-30 VDC, OUTPUT: BIPOLAR: 1 NPN, 1 PNP, 6 IN PIGTAIL QD CONNECTOR, (29538)
    ✓ IN STOCK!
    $208.00 Buy Surplus As Low As $119.10
    $119.10
    BANNER ENGINEERING SM312WQD

    BANNER ENGINEERING

    SM312WQD

    PHOTOELECTRIC SENSOR, DIFFUSE, MINI-BEAM, RANGE: 130 MM, INPUT 10-30 VDC, OUTPUT BIPOLAR, 1 NPN / 1 PNP, EURO M12 4-PIN INTEGRAL QD, (26892)
    ✓ IN STOCK!
    $207.50 Buy Surplus As Low As $157.70
    $157.70
    BANNER ENGINEERING SM312WQDP

    BANNER ENGINEERING

    SM312WQDP

    MINI-BEAM DIVERGENT DIFFUSE, RANGE 130 MM, INFARED LED, DISCRETE INPUT/OUTPUT, LIGHT/DARK OPERATION, SUPPLY VOLTAGE 10-30V DC, OUTPUT BIPOLAR: 1 NPN/PNP, 6 IN PIGTAIL QD CONNECTOR
    ✓ IN STOCK!
    $225.00 Buy Surplus As Low As $171.00
    $171.00
    BANNER ENGINEERING SM31E

    BANNER ENGINEERING

    SM31E

    PHOTOELECTRIC SENSOR, MINI-BEAM, EMITTER, 3 M MAX SENSING DISTANCE, 10-30 VDC INPUT, 2 M (6.5 FT) CABLE, IP67, (25623)
    ✓ IN STOCK!
    $123.75 Buy Surplus As Low As $74.25
    $74.25
    BANNER ENGINEERING SM31EPD

    BANNER ENGINEERING

    SM31EPD

    DETECTION EMITTER, CLEAR PLASTIC, MINI BEAM, RANGE: 0 - 0.3 M, INPUT: 10-30V DC, OUTPUT: NOT APPLICABLE - NO OUTPUTS, 2 M (6.5 FT) CABLE, PN 26537
    ✓ IN STOCK!
    $176.25 Buy Surplus As Low As $105.75
    $105.75
    Repair Yours $300.00
    BANNER ENGINEERING SM31EPDQD

    BANNER ENGINEERING

    SM31EPDQD

    26891 - MINI-BEAM: CLEAR PLASTIC DETECTI,ON EMITTER, RANGE: 0 - 0.3 M, INPUT: 10-30 V DC, OUTPUT: NOT APPLICABLE - NO OUTPUTS, EURO M12 4-PIN INTEGRAL QD
    ✓ IN STOCK!
    $289.95 Buy Surplus As Low As $173.97
    $173.97
    Repair Yours $300.00
    BANNER ENGINEERING Q196EQ

    BANNER ENGINEERING

    Q196EQ

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC EMMITTER ONLY, QUICK DISCONNECTED, 10-30VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $72.00
    $72.00
    BANNER ENGINEERING Q19SP6R

    BANNER ENGINEERING

    Q19SP6R

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, RECEIVER, 10-30 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $131.20
    $131.20
    BANNER ENGINEERING Q23SN6FP

    BANNER ENGINEERING

    Q23SN6FP

    DISCONTINUED BY MANUFACTURER, (46438) PHOTOELECTRIC SENSOR, Q23 SERIES: PLASTIC FIBER OPTIC, RANGE: DEPENDS ON FIBER USED, INPUT: 10-30V DC, OUTPUT: COMPLEMENTARY NPN, 2 M (6.5 FT) CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $55.99
    $55.99
    Repair Yours $300.00
    BANNER ENGINEERING Q23SN6RQ

    BANNER ENGINEERING

    Q23SN6RQ

    DISCONTINUED BY MANUFACTURER, Q23 SERIES RECEIVER, RANGE: 8 M, INPUT: 10-30 VDC, OUTPUT: COMPLEMENTARY NPN, 6 IN. PIGTAIL, QUICK-DISCONNECT CONNECTOR, (46444)
    ✓ IN STOCK!
    Buy Surplus As Low As $208.06
    $208.06
    BANNER ENGINEERING Q25SN6LP

    BANNER ENGINEERING

    Q25SN6LP

    PHOTOELECTRIC SENSOR, EZ-BEAM Q25 SERIES, POLARIZED RETRO, 2 METER RANGE, 10-30 VDC INPUT, COMPLEMENTARY NPN OUTPUT, 2 METER (6.5 FT) CABLE, IP69K, VISIBLE RED LED SENSING BEAM, RECTANGULAR ...
    ✓ IN STOCK!
    $191.25 Buy Surplus As Low As $112.68
    $112.68
    Repair Yours $300.00
    BANNER ENGINEERING Q25SN6LPQ

    BANNER ENGINEERING

    Q25SN6LPQ

    PHOTOELECTRIC SENSOR, Q25 SERIES, EZ-BEAM, RETROREFLECTIVE, 2 METER, NPN, 10-30V, QUICK DISCONNECT
    ✓ IN STOCK!
    $191.25 Buy Surplus As Low As $145.35
    $145.35
    BANNER ENGINEERING Q25SP6FF100Q

    BANNER ENGINEERING

    Q25SP6FF100Q

    SENSOR, EZ-BEAM Q25 SERIES: FIXED FIELD, RANGE: 100 MM, INPUT: 10-30 VDC, OUTPUT: COMPLEMENTARY PNP, 4-PIN M12 INTEGRAL QD, (31941)
    ✓ IN STOCK!
    $226.25 Buy Surplus As Low As $135.75
    $135.75
    BANNER ENGINEERING SM2A30PRLQD

    BANNER ENGINEERING

    SM2A30PRLQD

    (27298), PHOTOELECTRIC SENSOR, SM30 SERIES, RECEIVER, OPPOSED MODE, FREQUENCY A, PBT POLYESTER, 150 M RANGE, 24-240 V AC INPUT, SPST SOLID-STATE OUTPUT, LIGHT OPERATE, MINI 3-PIN INTEGRAL QD
    ✓ IN STOCK!
    $363.75 Buy Surplus As Low As $218.25
    $218.25
    BANNER ENGINEERING SM31EQD

    BANNER ENGINEERING

    SM31EQD

    PHOTOELECTRIC EMITTER, MINI-BEAM, 3-METER RANGE, 10/30 VDC, EURO M12, 4-PIN, INTEGRAL QD, INFRARED LED
    ✓ IN STOCK!
    $123.75 Buy Surplus As Low As $74.25
    $74.25
    BANNER ENGINEERING SM31R

    BANNER ENGINEERING

    SM31R

    RECEIVER, MINI-BEAM, RANGE 3 M, INPUT 10-30 VDC, OUTPUT: BIPOLAR 1 NPN / 1 PNP, 2 METER CABLE, (25622)
    ✓ IN STOCK!
    $176.25 Buy Surplus As Low As $105.75
    $105.75
    BANNER ENGINEERING SM502A

    BANNER ENGINEERING

    SM502A

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC, 2 METER RANGE, VISIBLE RED, 650 NM RETRO, 12 - 18 VDC, CABLE: 6 FT., (16658)
    ✓ IN STOCK!
    Buy Surplus As Low As $126.14
    $126.14
    BANNER ENGINEERING SM512DB

    BANNER ENGINEERING

    SM512DB

    DISCONTINUED BY MANUFACTURER, SCANNER,17577, PHOTOELECTRIC, 10-30V, SCANNER, 200MM RANGE, 2 METER CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $519.85
    $519.85
    BANNER ENGINEERING SM512DBCV

    BANNER ENGINEERING

    SM512DBCV

    DISCONTINUED BY MANUFACTURER, SCANNER, PHOTOELECTRIC LED SCANNER, 10-30 VDC, 1 NC/1 NO, 2 M LENGTH WIRE, (18783)
    ✓ IN STOCK!
    Buy Surplus As Low As $306.20
    $306.20
    BANNER ENGINEERING SM512LBDX

    BANNER ENGINEERING

    SM512LBDX

    DISCONTINUED BY MANUFACTURER, SCANNER, PHOTOELECTRIC DIFFUSE 150MM 10-30VDC NPN W/2M CBL
    ✓ IN STOCK!
    Buy Surplus As Low As $139.19
    $139.19
    BANNER ENGINEERING SM512LBFO

    BANNER ENGINEERING

    SM512LBFO

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, SM512 SERIES, LED SCANNER, 10-30 VDC, INFRARED 940 NM, GLASS FIBER OPTIC, (17578)
    ✓ IN STOCK!
    Buy Surplus As Low As $521.19
    $521.19
    BANNER ENGINEERING SM512LBFOMHS

    BANNER ENGINEERING

    SM512LBFOMHS

    DISCONTINUED BY MANUFACTURER, SCANNER, PHOTOELECTRIC SCANNER FIBEROPTIC MODULE HIGH SPEED
    ✓ IN STOCK!
    Buy Surplus As Low As $227.73
    $227.73
    BANNER ENGINEERING SM51EB

    BANNER ENGINEERING

    SM51EB

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC EMITTER, PART NO: 18585, RANGE: 8M (25'), 10-30 VDC, 2M CABLE, COMPLEMENTARY NPN OUTPUT TYPE, WITHOUT LENS BLOCK
    ✓ IN STOCK!
    Buy Surplus As Low As $252.00
    $252.00
    BANNER ENGINEERING SM912F

    BANNER ENGINEERING

    SM912F

    PHOTOELECTRIC SENSOR, VALU-BEAM, GLASS FIBER OPTIC, RANGE: DEPENDS ON FIBER, INPUT: 10-30 VDC, BI-POLAR, 1 NPN, 1 PNP, 2 METER (6.5 FT) CABLE LENGTH, ALSO KNOWN AS 25516
    ✓ IN STOCK!
    $372.50 Buy Surplus As Low As $223.50
    $223.50
    BANNER ENGINEERING SM912FQD

    BANNER ENGINEERING

    SM912FQD

    SENSOR, GLASS FIBER OPTIC, 10-30VDC, 1 NPN/1 PNP, QD CONNECTOR, VALU-BEAM SERIES
    ✓ IN STOCK!
    $372.50 Buy Surplus As Low As $223.50
    $223.50
    BANNER ENGINEERING SMA30PEL

    BANNER ENGINEERING

    SMA30PEL

    PHOTO ELECTRIC SENSOR, SM30 SERIES EMITTER FREQUENCY, A PBT POLYESTER, RANGE 150M, INPUT 10-30 VDC / 12-240 VAC, OUTPUT NOT APPLICABLE, NO OUTPUTS, 2M 6.5FT CABLE, (27287)
    ✓ IN STOCK!
    $306.25 Buy Surplus As Low As $183.75
    $183.75
    BANNER ENGINEERING SMA30PELQD

    BANNER ENGINEERING

    SMA30PELQD

    SM30 SERIES: EMITTER - FREQUENCY A PBT POLYESTER, RANGE: 150 M, INPUT: 10-30 VDC / 12 TO 240 VAC, OUTPUT: NOT APPLICABLE - NO OUTPUTS; MINI 3-PIN INTEGRAL QD, (27288)
    ✓ IN STOCK!
    $306.25 Buy Surplus As Low As $232.75
    $232.75
    BANNER ENGINEERING SMA31E

    BANNER ENGINEERING

    SMA31E

    MINI-BEAM: EMITTER, RANGE: 3 M, INPUT: 24-240 VAC, 2 M (6.5 FT) CABLE, FOR RECEIVER SEE PART # SM2A31R, (26058)
    ✓ IN STOCK!
    $155.00 Buy Surplus As Low As $93.00
    $93.00
    BANNER ENGINEERING SMA31ELQD

    BANNER ENGINEERING

    SMA31ELQD

    SENSOR, PHOTOELECTRIC, MINI-BEAM EMITTER, RANGE: 30M, 24-240 VAC, MICRO 3-PIN INTEGRAL QD, FOR RECEIVER SEE PART # SM2A31RLQD
    ✓ IN STOCK!
    $155.00 Buy Surplus As Low As $93.00
    $93.00
    BANNER ENGINEERING SMA912FQD

    BANNER ENGINEERING

    SMA912FQD

    AC SCANNER, FIBER WITH QUICK DISCONNECT, 24-130 VAC, (25517)
    ✓ IN STOCK!
    Buy Surplus As Low As $161.06
    $161.06
    BANNER ENGINEERING SM2A312CV

    BANNER ENGINEERING

    SM2A312CV

    CONVERGENT SENSOR, VISIBLE RED MINI BEAM, 650 NM, 16 MM FOCUS RANGE, 24-240 VAC, SPST SOLID-STATE, 2-WIRE, 2 M (6.5 FT) CABLE, (25992)
    ✓ IN STOCK!
    $243.75 Buy Surplus As Low As $119.66
    $119.66
    BANNER ENGINEERING SM2A312CV2QD

    BANNER ENGINEERING

    SM2A312CV2QD

    SENSOR, MINI-BEAM, VISIBLE RED 650 NM CONVERGENT, FOCAL POINT: 43 MM, INPUT: 24-240 V AC, OUTPUT: SPST SOLID-STATE 2-WIRE, MICRO 3-PIN INTEGRAL QD, 26911
    ✓ IN STOCK!
    $283.75 Buy Surplus As Low As $170.25
    $170.25
    Repair Yours $300.00
    ALLEN BRADLEY 194L-E12-4531

    ALLEN BRADLEY

    194L-E12-4531

    LOAD SWITCH, 194L, 12 AMP,1 POLE,STEP 1-2-3-4-5-6 60,OPEN,FRONT/DOOR,SELECT ACTUATOR SEPARATELY
    ✓ IN STOCK!
    Buy Surplus As Low As $59.00
    $59.00
    ALLEN BRADLEY 800T-N12

    ALLEN BRADLEY

    800T-N12

    LEVER, ROCKER ARM OPERATING, FOR 30 MM PUSH BUTTON, OPERATES 2 FLUSH HEADS, OR 1 FLUSH AND 1 EXTENDED HEAD
    ✓ IN STOCK!
    Buy Surplus As Low As $81.07
    $81.07
    ALLEN BRADLEY X-379482

    ALLEN BRADLEY

    X-379482

    CONTACT BLOCK UNIT, REPLACEMENT FOR LIMIT SWITCH 802T-A, SCREW TERMINALS, 1 NO / 1 NC, REPLACEMENT PART: X-166558 (EXCEPT FOR ALR TYPE), (802T-X379482)
    Buy Surplus As Low As $68.00
    $68.00
    ALLEN BRADLEY 845L-SAJZ23-CKY3

    ALLEN BRADLEY

    845L-SAJZ23-CKY3

    ENCODER,INCREMENTAL OPTICAL
    ✓ IN STOCK!
    Buy Surplus As Low As $137.12
    $137.12
    Repair Yours $300.00
    ALLEN BRADLEY 845N-SJDN3-CKY2

    ALLEN BRADLEY

    845N-SJDN3-CKY2

    ENCODER, INCREMENTAL, OPTICAL, METAL, WITH SHAFT, MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $238.03
    $238.03
    Repair Yours $300.00
    ALLEN BRADLEY 42DBS-5000

    ALLEN BRADLEY

    PHOTOSWITCH

    42DBS-5000

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, 10-30 VDC INPUT, 30 VDC OUTPUT, 24 VDC, WITH NPN AND PNP, MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $506.76
    $506.76
    Repair Yours $421.27
    ALLEN BRADLEY 42EF-D1LDAK-F5

    ALLEN BRADLEY

    PHOTOSWITCH

    42EF-D1LDAK-F5

    DISCONTINUED BY MANUFACTURER 12/31/2018, PHOTOELECTRIC SENSOR, RIGHTSIGHT, STANDARD 500 MM DIFFUSE, INFRED, DC - LO OR DO SELECTABLE, 5-PIN DC MICRO QD ON 152 MM, 6I N PIGTAIL, CLASS 2
    ✓ IN STOCK!
    Buy Surplus As Low As $117.55
    $117.55
    ALLEN BRADLEY 871C-J5A18

    ALLEN BRADLEY

    871C-J5A18

    PROXIMITY SWITCH 10-30VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $74.84
    $74.84
    ALLEN BRADLEY 889N-F4AFNU-3F

    ALLEN BRADLEY

    PHOTOSWITCH

    889N-F4AFNU-3F

    MINI CABLE, FEMALE, STRAIGHT (INT THREADS), FEMALE, STRAIGHT (INT THREADS), 4-PINS, MINI / MINI PLUS, MALE, STRAIGHT (INT. THREADS), MINI, STRAIGHT, MALE(INT. THREADS), SAME AS FIRST END, PV ...
    ✓ IN STOCK!
    Buy Surplus As Low As $21.40
    $21.40
    ALLEN BRADLEY 42GTGP-10000-QD

    ALLEN BRADLEY

    PHOTOSWITCH

    42GTGP-10000-QD

    DISCONTINUED BY MANUFACTURER 04/30/2010, SENSOR,PHOTOELECTRIC, STANDARD DIFFUSE
    ✓ IN STOCK!
    Buy Surplus As Low As $154.78
    $154.78
    ALLEN BRADLEY 42GTU-9200

    ALLEN BRADLEY

    42GTU-9200

    PHOTOELECTRIC SENSOR, TIMING, POLARIZED RETROREFLECTIVE, DC - NPN AND PNP, 2M (6.5FT), 300V CABLE, 10-40 VDC, NPN/PNP
    ✓ IN STOCK!
    Buy Surplus As Low As $200.20
    $200.20
    ALLEN BRADLEY 42SMP-7000

    ALLEN BRADLEY

    PHOTOSWITCH

    42SMP-7000

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, 7000 SERIES, MINI RECTANGULAR, STANDARD DIFFUSE, 7 DEGREE FOV, 0.2-9.0 INCH SENSING DISTANCE, 11-28 VDC, NO / NC, NPN, 3 METER CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $642.32
    $642.32
    ALLEN BRADLEY 42SMR-7001

    ALLEN BRADLEY

    PHOTOSWITCH

    42SMR-7001

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC RECEIVER, SENSOR, NPN, 100 MA, 28 VDC, BLACK CORD, MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $201.60
    $201.60
    Repair Yours $300.00
    ALLEN BRADLEY 42SMU-7260

    ALLEN BRADLEY

    PHOTOSWITCH

    42SMU-7260

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, 11-28VDC, NPN, RANGE1.5M, W/3M CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $473.68
    $473.68
    ALLEN BRADLEY 42SMU-7601

    ALLEN BRADLEY

    PHOTOSWITCH

    42SMU-7601

    DISCONTINUED BY MANUFACTURER 05/31/2010, MINI PHOTOELECTIC SENSOR, SENSITIVITY NOT ADJUSTABLE, STANDARD RETROREFLECTIVE, VISIBLE RED, PNP, DC - LIGHT OPERATE, 3M (10FT) CABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $285.54
    $285.54
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