McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    52 Products

    Adhesive-Back RTD Probes for Surfaces

    About the thickness of a dime, these RTD probes stick to surfaces in tight spaces to measure temperature.
    Wire-Lead Connection
    Image of Product. Front orientation. RTDs. Adhesive-Back RTD Probes for Surfaces.
    MIL-STD-108—Probes that meet MIL-STD-108 are submersible, so they can monitor the temperature of water in tanks or containers.
    Probe
    Cable
    Wire
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Wd.
    Thk.
    Accuracy
    Response
    Time, sec.
    Max.
    Pressure
    Lg.,
    ft.
    Material
    Lead
    Lg.
    AWG
    No. of
    Wires
    Wire
    Color
    Mil. Spec.
    Each
    Platinum Probe
    1,000-4 to 3009/16"0.188"0.063"±0.12%1.3Not Rated3Silicone Rubber
    1/2"28
    3Red/WhiteMIL-STD-1086568T520000000
    1,000-4 to 3505/8"0.188"0.063"±0.12%0.4Not Rated3PTFE
    1/2"26
    2Red/White6568T19000000
    1,000-4 to 3505/8"0.188"0.063"±0.12%1Not Rated3PTFE
    1/2"26
    2Red/White6568T13000000
    1,000-4 to 3505/8"0.313"0.063"±0.12%1.2Not Rated3PTFE
    1/2"22
    2Red/White6568T17000000
    1,000-4 to 35013/16"0.375"0.063"±0.12%0.9Not Rated3PTFE
    1/2"26
    2Red/White6568T16000000
     

    Bolt-On RTD Probes for Surfaces

    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style C.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style D.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style E.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style F.

    Style C

    Style D

    Style E

    Style F

    For reliable temperature readings in high-vibration environments, these RTD probes bolt onto the surface of motors and other equipment.
    Wire-Lead Connection
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style C.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style D.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style E.
    Image of Product. Front orientation. RTDs. Bolt-On RTD Probes for Surfaces, Style F.

    Style C

    Style D

    Style E

    Style F

    MIL-STD-202 Method 204 Test Condition D—Probes that meet MIL-STD-202 Method 204 Test Condition D have been tested for use in vibration-heavy environments.
    Probe
    Cable
    Wire
    Style
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Bolt Hole
    Dia.
    Lg.
    Wd.
    Thk.
    Accuracy
    Response
    Time, sec.
    Max.
    Pressure
    Lg.,
    ft.
    Material
    Lead
    Lg.
    AWG
    No. of
    Wires
    Wire
    Color
    Mil. Spec.
    Fasteners
    Included
    Each
    303 Stainless Steel Probe
    C1,000-55 to 5005/32"3/8"0.5"0.188"±0.12%10Not Rated3PTFE
    1/2"24
    2Red/WhiteMIL-STD-202 Method 204 Test Condition DNo6577T270000000
     
    316/316L Stainless Steel Probe
    D1,000-90 to 9305/32"1 1/4"0.313"0.188"±0.12%10Not Rated3Mica1/2"22
    2Red/WhiteMIL-STD-202 Method 204 Test Condition DNo6577T22000000
     
    300 Series Stainless Steel Probe
    E1,000-90 to 9305/32"1"0.5"0.188"±0.12%10Not Rated3Mica1/2"22
    2Red/WhiteMIL-STD-202 Method 204 Test Condition DNo6577T21000000
     
    Nickel-Plated Copper Probe
    F1,000-55 to 50017/64"1"0.5"0.188"±0.12%10Not Rated3PTFE
    1/2"24
    2Red/WhiteMIL-STD-202 Method 204 Test Condition DNo6577T25000000
     

    Threaded RTD Probe Transmitters for Liquids and Gas

    Send temperature readings directly to programmable logic controllers (PLCs)—with a built-in 4-20mA transmitter, these RTDs don’t require a separate signal converter. They have an NPT male probe connection, so they’re ready to screw into thermowells and other fittings on pipe and tanks. Made of 316 or 316L stainless steel, they resist corroding from harsh cleaning chemicals. This stainless steel also protects the RTD sensor inside from impact. They are also often installed in bores to measure the temperature of molds and dies. CE marked, they meet European safety standards.
    4-Pole M12 Plug-In Connection
    Image of Product. Front orientation. Contains Annotated. RTDs. Threaded RTD Probe Transmitters for Liquids and Gas, M12 Connection.
    Fixed Probe—Fixed RTDs can be used directly in liquid or steam because they’re welded to their fitting for a liquid-tight seal.
    IO Link Communication Protocol—RTDs with IO Link let you remotely adjust settings, read measurements, and receive error messages when connected to a PLC via an IO Link controller (not included). These RTDs meet EN 60751 Class A standards for temperature accuracy. UL and C-UL listed, they meet American and Canadian safety standards.
    Probe
    RTD Probe Resistance,
    ohm
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Probe Connection
    Pipe Size
    Voltage,
    V DC
    Max. Pressure,
    psi
    Output Current,
    mA
    Communication
    Protocol
    Overall
    Lg.
    Fitting Material
    Temp.,
    ° F
    Each
    NPT Male Probe Connection—Fixed 316L Stainless Steel Probe (IP67, IP68, IP69K)
    1,00011/16"1/4"±0.5%31/2
    18 to 325,8004 to 20IO Link4 1/8"316L Stainless Steel
    0 to 3006467T510000000
    1,0001 1/2"1/4"±0.5%31/2
    18 to 324,3504 to 20IO Link5"316L Stainless Steel
    0 to 3006467T52000000
    1,0003 1/2"1/4"±0.5%31/2
    18 to 324,3504 to 20IO Link7"316L Stainless Steel
    0 to 3006467T53000000
    1,0005 7/16"1/4"±0.5%31/2
    18 to 324,3504 to 20IO Link8 7/8"316L Stainless Steel
    0 to 3006467T54000000
     
    Cords

    Threaded RTD Probes for Surfaces

    Image of Product. Front orientation. RTDs. Threaded RTD Probes for Surfaces, Style C.

    Style C

    Thread these RTD probes into threaded holes in molds, dies, and other objects to measure their temperature.
    Wire-Lead Connection
    Image of Product. Front orientation. RTDs. Threaded RTD Probes for Surfaces, Style C.

    Style C

    MIL-STD-202 Method 204 Test Condition D—Probes that meet MIL-STD-202 Method 204 Test Condition D have been tested for use in vibration-heavy environments.
    Probe
    Cable
    Wire
    Style
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Thread
    Size
    Lg.
    Accuracy
    Response
    Time, sec.
    Max.
    Pressure
    Lg.,
    ft.
    Material
    Lead
    Lg.
    AWG
    No. of
    Wires
    Wire
    Color
    Mil. Spec.
    Each
    303 Stainless Steel Probe
    C1,000-55 to 5001/4"-20
    3/8"±0.12%10Not Rated3PTFE
    1/2"24
    2Red/WhiteMIL-STD-202 Method 204 Test Condition D6577T280000000
     

    RTD Wire

    Image of Product. Front orientation. RTD Wire.
    Make custom RTD probes.
    PVC Insulation—PVC insulation and jacket is good for general purpose applications.
    FEP Insulation—FEP insulation and jacket is more abrasion and chemical resistant than PVC.
    Fiberglass Insulation—Fiberglass insulation and jacket is rated for higher temperatures than PVC and FEP and is highly resistant to chemicals.
    Wire
    Wire Color
    Per Ft.
    RTD Probe Resistance,
    ohm
    Max. Temp.,
    ° F
    AWG
    Dia.
    Max. Jacket
    Temp., ° F
    No. of
    Wires
    Positive
    Negative
    Jacket Color
    Choose a Length, ft.
    1-99
    100-Up
    Stranded Wire
     
    PVC Insulation and Jacket
    100; 1,00022022
    0.03"2203WhiteRedWhite10, 20, 50, 1004062K610000000000
     
    FEP Insulation and Jacket
    100; 1,00040024
    0.024"4004WhiteRedWhite10, 20, 50, 1004062K1200000000
    100; 1,00040022
    0.03"4002WhiteRedWhite10, 20, 50, 1004062K1100000000
    100; 1,00040022
    0.03"4003WhiteRedWhite10, 20, 50, 1004062K6200000000
     
    Fiberglass Insulation and Jacket
    100; 1,00090024
    0.024"9003WhiteRedWhite with Red Stripe10, 20, 50, 1004062K6600000000
    100; 1,00090022
    0.03"9003WhiteRedWhite with Red Stripe10, 20, 50, 1004062K6300000000
     

    RTD Connectors

    Image of Product. Front orientation. RTD Connectors. Male.
    Image of Product. Front orientation. RTD Connectors. Female.

    Male

    Female

    Attach plug-in connectors to RTD probes with wire leads.
    Material
    RTD Probe Resistance,
    ohm
    No. of
    Connections
    For Max.
    Wire Ga.
    Max. Temp.,
    ° F
    Wire
    Connection
    Pin
    Lg.
    Distance Between
    Pins
    Contacts
    Body
    Each
    Round-Pin Male
    100; 1,000320
    400Screw Terminal9/16"0.438"CopperPlastic3869K7700000
     
    Round-Pin Female
    100; 1,000320
    400Screw Terminal0.438"CopperPlastic3869K7600000
     

    RTD Probes for Liquids and Gas

    Obtain more precise and reliable liquid and gas temperature measurements than thermocouple probes. Some of these probes meet DIN standards for accuracy, meaning they’re precise even with fast temperature changes.
    RTDs
    Image of Product. Front orientation. RTDs. RTD Probes for Liquids and Gas.
    IP68 Enclosure Rating and IP69K Enclosure Rating—IP68- and IP69K-rated probes have plug-in connections that can handle brief submersion and harsh washdowns.
    Probe
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Enclosure
    Rating
    Specs. Met
    Each
    4-Pin M12 Plug-In Connection—316L Stainless Steel Probe
    1,000-40 to 3006 1/4"1/4"±0.1%3IP68, IP69K
    EN 60751 Class A3866K610000000
    1,000-40 to 3006 1/4"3/8"±0.1%3IP68, IP69K
    EN 60751 Class A3866K71000000
    1,000-40 to 30010 1/4"1/4"±0.1%3IP68, IP69K
    EN 60751 Class A3866K64000000
    1,000-40 to 30010 1/4"3/8"±0.1%3IP68, IP69K
    EN 60751 Class A3866K54000000
    1,000-40 to 30014 1/8"1/4"±0.1%3IP68, IP69K
    EN 60751 Class A3866K66000000
    1,000-40 to 30014 1/8"3/8"±0.1%3IP68, IP69K
    EN 60751 Class A3866K73000000
    1,000-40 to 30022"3/8"±0.1%3IP68, IP69K
    EN 60751 Class A3866K58000000
     
    Cords
    RTDs with Cable
    Image of Product. Front orientation. Contains MultipleImages. RTDs. RTD Probes for Liquids and Gas, RTDs with Cable.
    IP67 Enclosure Rating—IP67-rated probes have plug-in connections that stand up to dust and temporary submersion.
    Probe
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Cable Lg.,
    ft.
    Max. Cable
    Temp., ° F
    Enclosure
    Rating
    Specs. Met
    Each
    4-Pin M12 Plug-In Connection—316 Stainless Steel Probe
    1,000-55 to 4802"1/4"±0.1%370.5480IP67
    EN 60751 Class A3866K350000000
     
    4-Pin M12 Plug-In Connection—316L Stainless Steel Probe
    1,000-40 to 1901 3/4"1/4"±0.1%106.5190IP67
    EN 60751 Class A3866K45000000
    1,000-40 to 1902"3/8"±0.1%256.5190IP67
    EN 60751 Class A3866K31000000
     

    Terminal Blocks for RTD and Thermocouple Connection Heads

    Image of Product. Oblong. Front orientation. Terminal Blocks. Terminal Blocks for RTD and Thermocouple Connection Heads, Oblong, Screw-Terminal Wire Connection.
    Image of Product. Round. Front orientation. Terminal Blocks. Terminal Blocks for RTD and Thermocouple Connection Heads, Round, Screw-Terminal Wire Connection.

    Oblong

    Round

    These terminal blocks fit inside connection heads for thermocouples and RTD. Make sure the block has enough circuits for your probe, and use a wire that matches your probe type. You can insert stripped wire directly or attach a terminal to prevent damage from the fastener.
    Mounting
    Slots
    No. of
    Circuits
    For Max.
    Wire Ga.
    Wire
    Connection
    Dia.
    Ht.
    Wd.
    Dp.
    For Thermocouple
    Wire Type
    For RTD Probe Resistance,
    ohm
    Max. Temp.,
    ° F
    Material
    Ht.
    Wd.
    No.
    of
    Each
    Oblong
    214
    Screw Terminal1 3/8"2"1"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"9/16"238705K82000000
    314
    Screw Terminal1 3/8"2"1"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"9/16"238705K8300000
    414
    Screw Terminal1 3/8"2"1"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"9/16"25927N1100000
    614
    Screw Terminal1 3/8"2"1"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"9/16"25927N1200000
     
    Round
    214
    Screw Terminal1 15/16"3/4"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"5/16"25927N1300000
    314
    Screw Terminal1 15/16"3/4"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"5/16"25927N1400000
    414
    Screw Terminal1 15/16"3/4"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"5/16"25927N1500000
    614
    Screw Terminal1 15/16"3/4"J, JX, K, KK, KX, T, TX100; 1,0001,000Ceramic3/16"5/16"25927N1600000
     

    RTD Transmitters

    Convert signals from your RTD probe into signal types that data loggers, controllers, and other instruments can read.
    Thread In
    Image of Product. Front orientation. RTD Transmitters. Thread In.
    Thread-in transmitters automatically recognize the probe type, so you don’t need to program them to match. They communicate via IO Link, which lets you change settings, read measurements, and receive error messages remotely when connected to a PLC via an IO Link controller (not included).
    For RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Dia.
    Dp.
    Voltage,
    V DC
    Output Current,
    mA
    Output Voltage,
    V DC
    Communication
    Protocol
    Housing
    Material
    Enclosure
    Rating
    Each
    4-Pole M12
    100/1,000-55 to 3003/4"2"20 to 324 to 20IO LinkPlasticIP67
    38875K910000000
    100/1,00032 to 2123/4"2"18 to 320 to 10IO LinkPlasticIP67
    38875K94000000
    100/1,00032 to 2123/4"2"20 to 324 to 20IO LinkPlasticIP67
    38875K92000000
     

    Threaded RTD Probe Transmitters with Digital Display for Liquids and Gas

    Image of Product. Front orientation. Contains Annotated. RTDs. Threaded RTD Probe Transmitters with Digital Display for Liquids and Gas.
    View temperature readings and adjust settings directly on these RTD probe transmitters. To communicate with programmable logic controllers (PLCs), they have a built-in transmitter with two outputs. One output can send a digital switching signal or use IO Link protocol with the addition of an IO Link controller (not included). The other can send a digital switching signal or a 4-20mA analog signal. The different output options make these RTDs good for a wide range of uses, including operating far away from a controller, taking automated measurements, and providing inputs to switching applications. All have an NPT threaded fitting welded onto the probe, so they’re ready to screw into containers, tanks, and pipes. Probe length is fixed. Made of 316L stainless steel, they are highly corrosion resistant.
    These RTDs meet EN 60751 Class A standards for temperature accuracy. UL Listed, C-UL Listed, and CE Marked, all meet American, Canadian, and European safety standards.
    4-Pole M12 Plug-In Connection
    Probe
    Configurable
    Digital Output
    Configurable
    Analog/Digital Output
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Probe Connection
    Pipe Size
    Max. Pressure,
    psi
    No.
    of
    Communication
    Protocol
    Signal
    Output
    No.
    of
    Current,
    mA
    Signal
    Output
    Overall
    Lg.
    Fitting Material
    Sensing Element
    Material
    Specs. Met
    Voltage,
    V DC
    Each
    NPT Male Probe Connection—Fixed 316L Stainless Steel Probe with Plastic Head (IP67)
    1,000-55 to 3001/2"1/4"±0.75%31/4
    5,8001IO LinkNPN/PNP14 to 20NPN/PNP4 7/8"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N160000000
    1,000-55 to 3001/2"1/4"±0.75%31/2
    4,3501IO LinkNPN/PNP14 to 20NPN/PNP4 7/8"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N11000000
    1,000-55 to 3001 1/4"1/4"±0.75%31/4
    5,8001IO LinkNPN/PNP14 to 20NPN/PNP5 5/8"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N17000000
    1,000-55 to 3001 1/4"1/4"±0.75%31/2
    4,3501IO LinkNPN/PNP14 to 20NPN/PNP5 5/8"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N12000000
    1,000-55 to 3003 1/4"1/4"±0.75%31/2
    3,6251IO LinkNPN/PNP14 to 20NPN/PNP7 5/8"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N13000000
    1,000-55 to 3005 3/16"1/4"±0.75%31/2
    3,6251IO LinkNPN/PNP14 to 20NPN/PNP9 1/2"316L Stainless Steel
    PlatinumEN 60751 Class A18 to 326912N14000000
     
    Cords

    Quick-Response Food and Beverage Panel-Mount Thermometers

    Image of Product. Front orientation. Thermometers. Quick-Response Food and Beverage Panel-Mount Thermometers.
    A resistance temperature detector (RTD) probe responds to temperature change faster than dial thermometers.
    Probe
    Material
    Temp. Range
    Resolution/Temp.
    Resolution
    Accuracy
    Digit
    Ht.
    Cable Lg.,
    ft.
    Lg.
    Dia.
    Panel Cutout
    Dia.
    Mount
    Type
    For RTD Probe
    Resistance, ohm
    Response
    Time, sec.
    Max. Pressure
    @ Temp.
    Housing
    Probe
    Includes
    Operating
    Voltage, V AC
    Electrical
    Connection Type
    Each
    -40° F to 250° F1° F±2° F1/2"82 5/8"1/4"2 3/32"Panel1,0001Not RatedPlasticStainless SteelBracket Assembly120Plug In38675K3430000000
    -40° C to 120° C1° F±2° C1/2"82 5/8"1/4"2 3/32"Panel1,0001Not RatedPlasticStainless SteelBracket Assembly120Plug In38675K429000000
     
    back to top