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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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    Results 751-800 of 788.
    SMC ISE20B-Y-N01

    SMC

    ISE20B-Y-N01

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, PNP, 2 OUTPUTS + COPY, 1/8 NPT, WITHOUT LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $123.00 Buy Surplus As Low As $74.00
    $74.00
    Repair Yours Contact Us
    RADWELL VERIFIED SUBSTITUTE IG0005-SUB

    RADWELL VERIFIED SUBSTITUTE

    IG0005-SUB

    SUBSTITUTE FOR IFM EFECTOR IG0005, PROXIMITY SENSOR, INDUCTIVE, CYLINDRICAL , CHROME PLATED BRASS, SHIELDED 18MM THREADED, 5MM RANGE, AC/DC OUTPUT, N/O OUTPUT, 1M PRE-WIRED CABLE
    ✓ IN STOCK!
    $96.00 Buy New $96.00
    RADWELL RAD-TBK-42G-02/C

    RADWELL

    RAD-TBK-42G-02/C

    PHOTOELECTRIC SENSOR KIT, RECTANGULAR, THRUBEAM, 61M, LO/DO, PNP/NPN,M12 QD, INCLUDES EMITTER (RAD-EMTR-TB-C) & RECEIVER (RAD-RCVR-TB-02)
    ✓ IN STOCK!
    $135.00 Buy New $135.00
    $55.00
    Repair Yours Contact Us
    RADWELL RAD-TBK-42G-16/G

    RADWELL

    RAD-TBK-42G-16/G

    PHOTOELECTRIC SENSOR KIT, RECTANGULAR, THRUBEAM, 152M, LO/DO, PNP/NPN, M12 QD, INCLUDES EMITTER (RAD-EMTR-TB-G) & RECEIVER (RAD-RCVR-TB-16)
    ✓ IN STOCK!
    $140.00 Buy New $140.00
    $60.00
    Repair Yours Contact Us
    RADWELL RAD-TBK-42E-76/77

    RADWELL

    RAD-TBK-42E-76/77

    PHOTOELECTRIC SENSOR KIT, MINIATURE RECTANGLE, INCLUDES EMITTER & RECEIVER, PNP, 6M PRE-WIRE CABLE, INCLUDED EMITTER (RAD08377) & RECEIVER (RAD08376)
    ✓ IN STOCK!
    $115.00 Buy New $115.00
    $59.87
    Repair Yours Contact Us
    SUNS INTERNATIONAL HMS-1A-12H

    SUNS INTERNATIONAL

    HMS-1A-12H

    LIMIT SWITCH, HEAVY DUTY, MINIATURE BODY, SPDT, ROTARY HEAD, SIDE ROLLER PLUNGER
    ✓ IN STOCK!
    $192.00 Buy Surplus As Low As $116.00
    $116.00
    SCHNEIDER ELECTRIC 9012GNG5

    SCHNEIDER ELECTRIC

    SQUARE D

    9012GNG5

    PRESSURE SWITCH, 3 TO 150 PSI, 9012G SERIES, 1 PRESSURE CONNECTION PORTS
    ✓ IN STOCK!
    $421.27 Buy Surplus As Low As $253.38
    $253.38
    THERMO KING 44-3018

    THERMO KING

    44-3018

    DISCONTINUED BY MANUFACTURER, THERMOSTAT SWITCH, WATER TEMPERATURE, WATER SAFETY, THREADED, (4403018)
    ✓ IN STOCK!
    Buy Surplus As Low As $47.00
    $47.00
    SCHMERSAL BNS 250-12Z 3,0M

    SCHMERSAL

    BNS 250-12Z 3,0M

    CODED MAGNET SAFETY SENSOR, NON-CONTACT, 100VAC/DC, 2 NC CONTACTS, 1 NO CONTACT, 4WIRE, 3 METER CABLE, ACTUATOR MUST BE ORDERED SEPARATELY
    ✓ IN STOCK!
    $307.38 Buy Surplus As Low As $192.91
    $192.91
    DATALOGIC S5N-MA-5-C01-PP

    DATALOGIC

    S5N-MA-5-C01-PP

    PHOTOELECTRIC SENSOR, S5N SERIES, M18 BARREL, 700MM SENSING RANGE, METAL HOUSING, LED, AXIAL OPTIC, M12 CONNECTOR, LONG DIFFUSE PROXIMITY, NO/NC, PNP, (952021211), (REPLACES: 952021210 / S50 ...
    ✓ IN STOCK!
    $88.74 Buy Surplus As Low As $71.76
    $71.76
    BAPI BA/10K-2-H200-O-BB2

    BAPI

    BA/10K-2-H200-O-BB2

    TEMPERATURE SENSOR, OUTSIDE AIR HUMIDITY, 4-20MA, 0-5V, IP66, NEMA 4, 2% AND 3% RH ACCURACIES
    ✓ IN STOCK!
    $213.00 Buy New $213.00
    $107.00
    Repair Yours Contact Us
    SMC ZSE1-00-15L

    SMC

    ZSE1-00-15L

    COMPACT PRESSURE SWITCH, VACUUM, ZM EJECTOR MOUNT, NPN OPEN COLLECTOR, 1 OUTPUT, 200 DEGREES ADJUSTMENT, GROMMET TYPE, 3M LEAD WIRE
    ✓ IN STOCK!
    $197.00 Buy Surplus As Low As $59.56
    $59.56
    Repair Yours Contact Us
    SMC ZSE20-P-P-C6L-L-X531

    SMC

    ZSE20-P-P-C6L-L-X531

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 1 OUTPUT, UNIT SELECT (PSI), ELBOW FITTING 6MM, 2M LEAD WIRE, MANUAL, TERMINAL COVER
    ✓ IN STOCK!
    $112.20 Buy Surplus As Low As $85.68
    $85.68
    Repair Yours Contact Us
    SMC ZSE20A-V-M-01

    SMC

    ZSE20A-V-M-01

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 2 OUTPUTS + ANALOG CURRENT, SI UNITS, R1/8, WITHOUT LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $103.23 Buy Surplus As Low As $78.46
    $78.46
    Repair Yours Contact Us
    SMC ZSE20-P-01

    SMC

    ZSE20-P-01

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 1 OUTPUT, R1/8, WITHOUT LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $94.00 Buy Surplus As Low As $41.00
    $41.00
    Repair Yours Contact Us
    SMC ZSE20-P-P-N7L-LA2Y

    SMC

    ZSE20-P-P-N7L-LA2Y

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 1 OUTPUT, UNIT SELECT (PSI), ELBOW FITTING 1/4", 2M LEAD WIRE, HORIZONTAL BRACKET, NO MANUAL/CERT
    ✓ IN STOCK!
    $127.59 Buy Surplus As Low As $76.55
    $76.55
    Repair Yours Contact Us
    SMC ZSE20B-T-C6L-W

    SMC

    ZSE20B-T-C6L-W

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 2 OUTPUTS + ANALOG VOLTAGE, ELBOW FITTING 6MM, LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $142.00 Buy Surplus As Low As $86.00
    $86.00
    Repair Yours Contact Us
    SMC ZSE20B-Y-01-WA2

    SMC

    ZSE20B-Y-01-WA2

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 2 OUTPUTS + COPY, R1/8, LEAD WIRE, HORIZONTAL BRACKET, MANUAL
    ✓ IN STOCK!
    $145.00 Buy Surplus As Low As $111.00
    $111.00
    Repair Yours Contact Us
    SMC ZSE20B-Y-P-N01-WA1-X505

    SMC

    ZSE20B-Y-P-N01-WA1-X505

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 2 OUTPUTS + COPY, UNIT SELECT (PSI), 1/8 NPT, LEAD WIRE, VERTICAL BRACKET, MANUAL, M12 PRE-WIRED CONNECTOR, 100MM LEAD WIRE
    ✓ IN STOCK!
    $159.00 Buy Surplus As Low As $94.00
    $94.00
    Repair Yours Contact Us
    SMC ZSE20F-N-P-C6L-B

    SMC

    ZSE20F-N-P-C6L-B

    DIGITAL PRESSURE SWITCH, COMPOUND PRESSURE, -100 TO 100 KPA, NPN, 1 OUTPUT, UNIT SELECT (PSI), ELBOW FITTING 6MM, WITHOUT LEAD WIRE, PANEL MOUNT, MANUAL
    ✓ IN STOCK!
    $102.00 Buy Surplus As Low As $78.00
    $78.00
    Repair Yours Contact Us
    SMC ISE20-P-M-01

    SMC

    ISE20-P-M-01

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, PNP, 1 OUTPUT, SI UNITS, R1/8, WITHOUT LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $94.00 Buy Surplus As Low As $41.00
    $41.00
    Repair Yours Contact Us
    SMC ISE20-P-P-C6L

    SMC

    ISE20-P-P-C6L

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, PNP, 1 OUTPUT, UNIT SELECT (PSI), ELBOW FITTING 6MM, WITHOUT LEAD WIRE, MANUAL
    ✓ IN STOCK!
    $96.00 Buy Surplus As Low As $42.00
    $42.00
    Repair Yours Contact Us
    SMC ISE20A-S-C4L-JD-X531

    SMC

    ISE20A-S-C4L-JD-X531

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, NPN, 2 OUTPUTS + ANALOG CURRENT, ELBOW FITTING 4MM, LEAD WIRE, PANEL MOUNT + COVER, MANUAL, TERMINAL COVER
    ✓ IN STOCK!
    $133.00 Buy Surplus As Low As $68.00
    $68.00
    Repair Yours Contact Us
    SMC ISE20B-L-P-M5-WA2

    SMC

    ISE20B-L-P-M5-WA2

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, IO-LINK/SWITCH, 1 OUTPUT, UNIT SELECT (PSI), M5 FEMALE, LEAD WIRE, HORIZONTAL BRACKET, MANUAL
    ✓ IN STOCK!
    $155.00 Buy Surplus As Low As $118.00
    $118.00
    Repair Yours Contact Us
    SMC ZSE20BF-T-N01-WA1-X500

    SMC

    ZSE20BF-T-N01-WA1-X500

    DIGITAL PRESSURE SWITCH, COMPOUND PRESSURE, -100 TO 100 KPA, PNP, 2 OUTPUTS + ANALOG VOLTAGE, 1/8 NPT, LEAD WIRE, VERTICAL BRACKET, MANUAL, 3M LEAD WIRE LENGTH
    ✓ IN STOCK!
    $159.00 Buy Surplus As Low As $82.00
    $82.00
    Repair Yours Contact Us
    SMC ISE20B-T-01-WA1

    SMC

    ISE20B-T-01-WA1

    DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, -0.1 TO 1 MPA, PNP, 2 OUTPUTS + ANALOG VOLTAGE, R1/8, LEAD WIRE, VERTICAL BRACKET, MANUAL
    ✓ IN STOCK!
    $145.00 Buy Surplus As Low As $87.00
    $87.00
    Repair Yours Contact Us
    SMC ZSE20-P-N7H-LA1

    SMC

    ZSE20-P-N7H-LA1

    DIGITAL PRESSURE SWITCH, VACUUM, 0 TO -101 KPA, PNP, 1 OUTPUT, STRAIGHT FITTING 1/4", 2M LEAD WIRE, VERTICAL BRACKET, MANUAL
    ✓ IN STOCK!
    $110.00 Buy Surplus As Low As $84.00
    $84.00
    Repair Yours Contact Us
    RADWELL VERIFIED SUBSTITUTE LSA1A1-1B-SUB

    RADWELL VERIFIED SUBSTITUTE

    LSA1A1-1B-SUB

    LIMIT SWITCH, HEAVY DUTY, STANDARD BODY, SPDT, 1/2NPT, ROTARY HEAD, STANDARD TRAVEL, INCLUDES LEVER ARM W/ METAL ROLLER, 1.5 L X .75 D X .25 W
    ✓ IN STOCK!
    $124.00 Buy New $124.00
    BARD 8402-094BX

    BARD

    8402-094BX

    LIMIT SWITCH, 210 DEGREES F, CO AUTO
    ✓ IN STOCK!
    $80.00 Buy Surplus As Low As $46.56
    $46.56
    KIDDE-FENWAL, LLC 27121-20-225F

    KIDDE-FENWAL, LLC

    KIDDE FIRE SYSTEMS

    27121-20-225F

    DETECT-A-FIRE DETECTOR, MODEL 27121-20, VERTICAL DAF, STAINLESS STEEL HEX HEAD, NORMALLY OPEN CONTACTS, TEMPERATURE SETTING 225F
    ✓ IN STOCK!
    $516.00 Buy Surplus As Low As $286.40
    $286.40
    ALLEN BRADLEY 8-590

    ALLEN BRADLEY

    ELECTRONICS CORPORATION OF AMERICA

    8-590

    DISCONTINUED BY MANUFACTURER, OUTPUT MODULE, PLUG IN, PHOTOELECTRIC ACCESSORY, SERIES 5000, ELECTROMECHANICAL RELAY, SPDT, 2 AMP, 42 MTB TERMINAL BASE, 120/240 VAC, SINGLE POLE, DOUBLE THROW
    ✓ IN STOCK!
    Buy Surplus As Low As $31.68
    $31.68
    SMC ISE10-01-A-P

    SMC

    ISE10-01-A-P

    DIGITAL PRESSURE SWITCH, 12-24 VDC, ISE10, POSITIVE PRESSURE, -0.1 TO 1.0 MPA, R1/8, SIDE PORTED, NPN OPEN COLLECTOR, 2 OUTPUTS, UNIT SWITCHING (PSI), WITHOUT LEAD WIRE
    ✓ IN STOCK!
    $116.00 Buy Surplus As Low As $77.00
    $77.00
    Repair Yours Contact Us
    FESTO SMT-10M-PS-24V-E-0.3-L-M8D

    FESTO

    SMT-10M-PS-24V-E-0.3-L-M8D

    PROXIMITY SENSOR, SERIES SMT-10M, MAGNETO-RESISTIVE, PNP, N/O CONTACT, 130 HZ, 100 MA, 5-30 VDC, M8X1 3-PIN CABLE W/ PLUG, 0.3 M CABLE LENGTH, IP65/IP68, (551375)
    ✓ IN STOCK!
    $104.04 Buy Surplus As Low As $79.56
    $79.56
    RADWELL RAD-TBK-42E-81/82

    RADWELL

    RAD-TBK-42E-81/82

    PHOTOELECTRIC SENSOR KIT, M18 NOSETHREAD, SMALL RECTANGULAR BODY WITH UNIVERSAL MOUNTING OPTIONS, 20M SENSING RANGE, NPN, 10M CABLE, INCLUDE EMITTER (RAD08581) & RECEIVER (RAD08582)
    ✓ IN STOCK!
    $120.00 Buy New $120.00
    $68.00
    Repair Yours Contact Us
    RADWELL RAD-TBK-42E-81/83

    RADWELL

    RAD-TBK-42E-81/83

    PHOTOELECTRIC SENSOR KIT, M18 NOSETHREAD, SMALL RECTANGULAR BODY WITH UNIVERSAL MOUNTING OPTIONS, 20M SENSING RANGE, PNP, 2M CABLE, INCLUDES EMITTER (RAD08581) & RECEIVER (RAD08583)
    ✓ IN STOCK!
    $120.00 Buy New $120.00
    $68.00
    Repair Yours Contact Us
    STAHL WCS2-LS277

    STAHL

    WCS2-LS277

    DISCONTINUED BY MANUFACTURER, PARALLEL ENCODER, 10-27VDC, 2VA, 95
    ✓ IN STOCK!
    Buy Surplus As Low As $180.00
    $180.00
    Repair Yours Contact Us
    SMC ISE30A-N01-P-P

    SMC

    ISE30A-N01-P-P

    DISCONTINUED BY MANUFACTURER, DIGITAL PRESSURE SWITCH, POSITIVE PRESSURE, 1/8 NPT (M5 FEMALE THREAD), PNP OPEN COLLECTOR, 1 OUTPUT, UNIT SWITCHING (PSI), WITHOUT LEAD WIRE, MANUAL
    Buy Surplus As Low As $73.44
    $73.44
    Repair Yours Contact Us
    PYROMATION INC T31-385U-S(0-400)F

    PYROMATION INC

    T31-385U-S(0-400)F

    TEMPERATURE TRANSMITTER, RTD 3 WIRE, 100OHM PLATINUM, UPSCALE BURNOUT 21 MA, 0-400 DEGREES F
    $236.16 Buy New $236.16
    $141.70
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