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    33 Products

    Electronic Polarity Testers

    Image of Product. Front orientation. Polarity Testers. Electronic Polarity Testers.
    Point this detector at your magnet and press the button. Red and green lights indicate north or south poles.
    Lg.
    Wd.
    Batteries
    Included
    Each
    5 1/2"1"Yes57255K71000000

    Digital Magnetic Field Indicators

    Image of Product. Front orientation. Magnetic Field Indicators. Digital Magnetic Field Indicators.
    Measure magnetic fields to determine electromagnetic interference and detect flaws in welded metal.
    Cannot Be Sold To—Product regulations restrict sales to the listed jurisdictions/areas.
    Measurement Unit
    Measuring Range
    (Increments)
    Accuracy
    Freq. Bandwith,
    kHz
    Batteries
    Included
    Includes
    Cannot Be
    Sold To
    Each
    Amperes per Meter, Gauss, Teslas0 G to 100 G (0.01 G)
    0 kG to 1 kG (0.1 G)
    0 kG to 10 kG (1 G)
    0 kG to 45 kG (10 G)
    ±2%0 to 5YesAC Adapter, Detachable ProbeCalifornia1488T56000000000

    Digital Electromagnetic Field Indicators

    Image of Product. Front orientation. Magnetic Field Indicators. Digital Electromagnetic Field Indicators.
    Measure the strength of magnetic fields, electric fields, and radio frequencies at the same time. To detect emissions, just point these meters at the electrical equipment you want to test, such as a cable. When they detect high levels that could damage sensitive equipment, an alert appears in red and an audible alarm sounds. Their color LCD display shows readings, bar graphs, and trending graphs.
    These indicators store up to 20 radio frequency readings. Send readings to your PC using a USB cable (not included).
    Measurement
    Unit
    Measures
    Measuring Range (Increments)
    Accuracy
    Frequency Bandwith
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Each
    Gauss, TeslasMagnetic Field Strength
    Electric Field Strength
    Radio Frequency Strength
    Magnetic Field Direction (3-Axis)
    0.02 G to 2 G (0.01 G)
    50 V/m to 2,000 V/m (1 V/m)
    0.03 V/m to 14.46 V/m (0.02 V/m)
    ±15%
    ±7%
    ±2 dB
    0.05 kHz to 0.06 kHz
    0.05 kHz to 0.06 kHz
    50,000 kHz to 3,500,000 kHz
    4 1/2"2 1/2"1"Yes7401N110000000

    Magnetic Field Detectors

    Image of Product. Front orientation. Magnetic Field Indicators. Magnetic Field Detectors.
    Troubleshoot solenoid valves, check relays, and test permanent magnets by detecting if a magnetic field is present. Hold these detectors near a surface and they'll light up blue if they sense a magnetic field. They don't measure the strength or direction of the magnetic field.
    Detects
    Lg.
    Wd.
    Batteries
    Included
    Features
    Each
    Magnetic Fields6 1/4"1"YesFlashlight, Low Battery Indicator7246N11000000

    Paper Magnetic Polarity Testers

    Image of ProductInUse. Front orientation. Polarity Testers. Paper Magnetic Polarity Testers.
    Press onto your magnet and pole locations show up as dark green. Each sheet can be used multiple times.
    Lg.
    Wd.
    Thk.
    Pkg.
    Qty.
    Pkg.
    3"3"0.005"35702K21000000
    6"6"0.005"25702K2400000
    12"12"0.005"15702K22000000
    36"18"0.005"15702K23000000

    Calibrated-Dial Magnetic Field Indicators with Certificate of Calibration

    Image of Product. Front orientation. Contains MultipleImages. Magnetic Field Indicators. Calibrated-Dial Magnetic Field Indicators with Certificate of Calibration.
    Image of Product. Protective Case. Front orientation. Magnetic Field Indicators. Calibrated-Dial Magnetic Field Indicators with Certificate of Calibration.

    Protective Case

    These indicators come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. All are calibrated at 72° F. In addition to measuring the strength of a magnetic field in gauss, they also measure the direction of a magnetic field in positive/negative. To take a measurement, place the lower edge of the indicator near or against your tools and parts.
    Indicators
    Protective Cases
    Dial
    Magnetic Field
    Measuring Range
    Dia.
    Face
    Color
    Housing
    Material
    Each
    Each
    10-0-10 Gauss2 1/2"WhiteAluminum
    8450T2100000008450T32000000
    20-0-20 Gauss2 1/2"WhiteAluminum
    8450T220000008450T3200000
    50-0-50 Gauss2 1/2"WhiteAluminum
    8450T230000008450T3200000

    Plug-In Magnetic Particle Flaw Detection Kits

    Image of Product. Front orientation. Magnetic Particle Flaw Detection Kits. Plug-In Magnetic Particle Flaw Detection Kits.
    Find faulty seams, welding defects, and other surface-level flaws in ferrous materials. These kits come with everything you need to start inspecting parts. Apply the powder to the surface you want to inspect. Then plug in the yoke and it creates a magnetic field that draws the powder to the imperfection, making it easy to spot. Built for rugged environments, the yoke has a sealed design that stands up to chemicals and other harsh conditions. It’s also half the weight of a standard yoke and fits comfortably in your hand, so there’s less fatigue if you use it for extended periods of time.
    Electrical
    For Use On
    Includes
    Connection
    No. of
    Blades
    Voltage,
    V AC
    Specs.
    Met
    Mil. Spec.
    Each
    Cast Iron, Stainless Steel, SteelOne 1-lb. Bottle of Gray Powder, One 1-lb. Bottle of Red PowderStraight Blade3120ASTM E1444MIL-STD-2132, MIL-STD-2711394T20000000

    Calibrated-Dial Magnetic Field Indicators

    Image of Product. Front orientation. Magnetic Field Indicators. Calibrated-Dial Magnetic Field Indicators.
    Image of Product. Protective Case. Front orientation. Magnetic Field Indicators. Calibrated-Dial Magnetic Field Indicators.

    Protective Case

    Calibrated at 72° F. In addition to measuring the strength of a magnetic field in gauss, these indicators also measure the direction of a magnetic field in positive/negative. To take a measurement, place the lower edge of the indicator near or against your tools and parts.
    Indicators
    Protective Cases
    Dial
    Magnetic Field
    Measuring Range
    Dia.
    Face
    Color
    Housing
    Material
    Each
    Each
    5-0-5 Gauss2 1/2"WhiteAluminum
    8450T3100000008450T32000000
    10-0-10 Gauss2 1/2"WhiteAluminum
    8450T140000008450T3200000
    20-0-20 Gauss2 1/2"WhiteAluminum
    8450T160000008450T3200000
    50-0-50 Gauss2 1/2"WhiteAluminum
    8450T180000008450T3200000

    Dial Magnetic Field Indicators

    Image of Product. Front orientation. Magnetic Field Indicators. Dial Magnetic Field Indicators.
    Place the lower edge of these dial indicators near or against your tools and parts to measure the strength of a magnetic field in gauss.
    Dial
    Magnetic Field
    Measuring Range
    Dia.
    Face
    Color
    Housing
    Material
    Each
    10-0-10 Gauss2"WhitePlastic8575T110000000

    Magnetic Particles for Flaw Detection

    Image of Product. Front orientation. Magnetic Particles. Magnetic Particles for Flaw Detection, Powder.

    Powder

    Image of Product. Front orientation. Magnetic Particles. Magnetic Particles for Flaw Detection, Sprays.

    Sprays

    Image of Specification. Front orientation. Contains Border. Gray. Magnetic Particles for Flaw Detection.
    Image of Specification. Front orientation. Contains Border. Red. Magnetic Particles for Flaw Detection.
    Image of Specification. Front orientation. Contains Border. Yellow. Magnetic Particles for Flaw Detection.

    Gray

    Red

    Yellow

    Image of Specification. Front orientation. Contains Border. Black. Magnetic Particles for Flaw Detection.
    Image of Specification. Front orientation. Contains Border. Fluorescent Light Green. Magnetic Particles for Flaw Detection.

    Black

    Fluorescent

    Light Green

    Reveal imperfections both at and slightly below the surface of your metal part, unlike other flaw detection methods. Use these particles with a magnetic yoke to check for faulty seams, welding defects, and fatigue cracks to make sure metal parts will be safe under high stress. The yoke creates a magnetic field that draws the particles towards flaws, making them easy to spot. To prevent issues with other inspections down the line, make sure to fully demagnetize your part to remove all the particles.
    Powder—Powder particles withstand higher temperatures than spray particles and are quick to use. They don’t need to dry, which means you can start testing immediately. Shake them out from a bottle or use a powder blower to apply them to your part. You can blow excess particles off even if your part is still magnetized. They come in different colors, so choose what will contrast best with your metal surface.
    Sprays—When testing round or hard-to-reach material, it’s easier to apply an even layer of spray particles than powder. They’re smaller than powder particles, so they’re good for detecting finer surface flaws and imperfections.
    Water-Based Spray—Water-based spray particles are easier to clean up than oil-based spray particles.
    Ultraviolet—Ultraviolet spray particles require a UV light, but stand out more than natural light particles, so you spend less time examining each part. For the best contrast, use these particles in dim lighting.
    Black—Black spray particles are often used with white contrast paint to make flaws more visible.
    360° Sprayer—Particles with a 360° sprayer won’t sputter or spatter even when the aerosol can is upside down, so you can coat parts evenly without straining your wrist.
    Container
    Application
    Temp. Range, ° F
    For Use On
    Visibility
    Color
    Net Wt.
    Type
    Particle
    Size, μm
    Min.
    Max.
    Features
    Specs. Met
    Mil. Spec.
    Each
    Powder
    Cobalt, Iron, Nickel, Stainless Steel, SteelNatural LightGray10 lb.Pail80Not Rated750ASTM E1444MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2711394T3720000000
    Cobalt, Iron, Nickel, Stainless Steel, SteelNatural LightRed10 lb.Pail80Not Rated600ASTM E1444, ISO 9934MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2711394T373000000
    Cobalt, Iron, Nickel, Stainless Steel, SteelNatural LightYellow10 lb.Pail80Not Rated500ASTM E1444, ISO 9934MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2711394T101000000
     
    Oil-Based Spray
    Cobalt, Iron, Nickel, Stainless Steel, SteelNatural LightBlack10.5 oz.Aerosol Can245120360° SprayerASTM E1444, ISO 9934MIL-STD-2132, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2719413N10200000
    Cobalt, Iron, Nickel, Stainless Steel, SteelUltravioletFluorescent Light Green10.5 oz.Aerosol Can655120ASTM E1444, ISO 9934MIL-STD-2132, MIL-STD-271, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2719413N1300000
     
    Water-Based Spray
    Cobalt, Iron, Nickel, Stainless Steel, SteelNatural LightBlack12.2 oz.Aerosol Can225120ISO 9934MIL-STD-2132, NAVSEA 250-1500-1, NAVSEA T9074-AS-GIB-010/2719413N10100000
     

    Battery-Powered Magnetic Particle Flaw Detection Kits

    Image of Product. Front orientation. Magnetic Particle Flaw Detection Kits. Battery-Powered Magnetic Particle Flaw Detection Kits.
    Check for defects slightly beneath the surface of ferrous materials that you wouldn’t otherwise see. The yoke in these kits is powered by a battery, so it uses direct current to create a strong magnetic field that reaches just below the surface of your part. When you apply the powder, the powder will move towards any flaws, helping you identify tears, cracks, and other imperfections.
    Ideal for fieldwork, these kits come with everything you need for on-the-go inspections. The yoke lasts up to eight hours on a single battery charge. Built for rugged environments, it has a sealed design that stands up to chemicals and other harsh conditions.
    For Use On
    Includes
    Battery Voltage,
    V DC
    Batteries
    Included
    Battery Charger
    Included
    Specs.
    Met
    Each
    Cobalt, Iron, Nickel, Stainless Steel, SteelOne 1-lb. Bottle of Gray Powder6YesYesASTM E14446081N11000000000

    Motion-Measuring Modules for Development Boards

    Measure your device's acceleration, rotation, or orientation. These modules gather data over time and track movement, which can help improve performance, debug issues, and calibrate your components. Solder them onto a development board. To connect them to your device, solder on a wire or header. For a solderless connection, use a Qwiic cord (not included).
    Modules with Magnetometer
    Image of Product. Front orientation. Development Board Sensor Modules. Motion-Measuring Modules for Development Boards.
    A magnetometer measures your device's orientation.
    Output Data
    Magnetic Field
    Measuring, G
    Resolution,
    bit
    Freq.,
    kHz
    Measures
    Temp. Range,
    ° F
    Input Voltage,
    V DC
    I2C
    Address
    Connection
    Method
    No. of Qwiic
    Connections
    Lg.
    Wd.
    Each
    I²C Communication Protocol—Qwiic Connection
    0 to 8181Magnetic Field Strength-40 to 2202.8 to 3.60x30Solder13/4"5/16"8184N14000000
     
    Modules with Accelerometer, Gyroscope, Magnetometer
    Image of Product. Front orientation. Development Board Sensor Modules. Motion-Measuring Modules for Development Boards.
    A gyroscope measures how fast your device is rotating.
    A magnetometer measures your device's orientation.
    An accelerometer measures the rate at which your device is speeding up or slowing down.
    Output Data
    Accel., g
    Velocity
    Magnetic Field
    Measuring, G
    Resolution,
    bit
    Freq.,
    kHz
    Measures
    Temp. Range,
    ° F
    Input Voltage,
    V DC
    I2C Address
    Connection
    Method
    No. of Qwiic
    Connections
    Lg.
    Wd.
    Each
    I²C Communication Protocol—Qwiic Connection
    2
    4
    8
    16
    125 °/s
    250 °/s
    500 °/s
    1,000 °/s
    2,000 °/s
    4,000 °/s
    0 to 8181Acceleration, Angular Velocity, Magnetic Field Strength-40 to 2201.71 to 3.60x6A
    0x6B
    0x30
    Solder21"1"8184N13000000
     

    Plug-In Magnetic Yokes

    Image of Product. Front orientation. Magnetic Yokes. Plug-In Magnetic Yokes.
    Find welding defects and other flaws in magnetic materials. These yokes create a magnetic field that draws magnetic powder (not included) to imperfections, making them easy to spot. All operate on AC power, which creates a small magnetic field ideal for detecting flaws along the surface of materials. Powered by standard electrical outlets, these yokes have a reliable and consistent power source.
    Attach an LED light to your yoke to brightly illuminate inspection areas. They’re powered by the yoke’s magnetic field, so they don’t require batteries.
    Calibrate your yoke before each use with a test weight to ensure accurate test results.
    AC/DC Switch—Yokes with an AC/DC switch can also operate on DC power. DC power generates a deeper magnetic field than AC power to find defects underneath surfaces, such as internal tears and cracks.
    6 lb.—6-lb. yokes are lightweight and fit comfortably in your hand to reduce fatigue over extended use.
    Yokes
    Test Weights
    LED Light
    Attachments
    Replacement
    Cords
    Voltage,
    V AC
    Features
    For Use On
    Power
    Source
    Cord Lg.,
    ft.
    Ht.
    Lg.
    Wt.,
    lb.
    Specs.
    Met
    Each
    Each
    Each
    Each
    120Cobalt, Iron, Nickel, Stainless Steel, SteelElectric127 1/2"12"6ASTM E14447096N1200000007096N1400000007096N1300000007096N150000000
    120AC/DC SwitchCobalt, Iron, Nickel, Stainless Steel, SteelElectric127 1/2"12"8ASTM E14447096N11000000007096N14000000———0———0

    Contrast Paint for Magnetic-Particle Flaw Detection

    Image of Product. Front orientation. Paint. Contrast Paint for Magnetic-Particle Flaw Detection.
    Create a high-contrast background for magnetic particles to make flaws easier to spot during inspections. This opaque white paint reduces glare, so you can see where particles are clustered around imperfections. No need for brushes—it comes in an aerosol can that’s easy to use during field testing and spot inspections. Even when the can is upside down, the 360° sprayer won’t sputter or spatter, so you can coat parts evenly without straining your wrist. To speed up inspections, this paint dries quickly, leaving a clean coat that won’t bubble or flake. It works with both wet and dry magnetic particles.
    Container
    Net Wt.,
    oz.
    Type
    Solution
    Type
    Overall Dry
    Time, min.
    Application
    Temp. Range, ° F
    For Use On
    Color
    Features
    Each
    Spray
    12Aerosol CanSolvent Based145 to 120Cast Iron, Cobalt, Nickel, Steel, Stainless Steel, IronWhite360° Sprayer7025N11000000
     
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