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    6" (160mm) Distance Measuring Wheel, Digital LCD

    6" (160mm) Distance Measuring Wheel, Digital LCD

    T-DMW-6
    Buy small 6" (160mm) distance measuring wheel at cheap price, digital LCD display with memory, reset and unit switching function, can store 5 levels of data at a time. Powered by 2 x AAA battery, high measuring accuracy to +/- 0.5%, thickened rubber tires for longer life.
    Wholesale $62.81
    Stainless Steel Vernier Caliper, 6 Inch/ 150mm

    Stainless Steel Vernier Caliper, 6 Inch/ 150mm

    T-VC-150
    Buy stainless steel vernier caliper measuring tool in bulk online with low price. Accurate measurement range 0 to 6 inch / 150mm, resolution 0.001" (imperial), 0.02mm (metric). Hard stainless steel depth measuring bar. Locking screws for sliding measuring jaws.
    Wholesale $38.31
    0-1300μm Coating Thickness Gauge

    0-1300μm Coating Thickness Gauge

    T-TC-100
    Buy best paint depth gauge online. Built-in precision probe can work under the principle of electromagnetic induction and eddy current. 0-1300μm measuring range, ±3%+2μm accuracy, 0.1μm resolution. The coating and plating thickness can be measured quickly and accurately without damage.
    Wholesale $130.77
    2 Line Rotary Green Laser Level

    2 Line Rotary Green Laser Level

    T-SL-02
    Low price 2 line 360° rotary green laser level for leveling, aligning, plumb and square applications. ±3° self-levelling range, with 1 vertical line, 1 horizontal line and 2 bright dots. Short press H and V to switch the laser lines.
    Wholesale $130.29
    3m (10 ft) Easy Read Steel Tape Measure

    3m (10 ft) Easy Read Steel Tape Measure

    T-STM-03
    Best 3m (10 ft ) steel tape measure for wholesale, with superior internal mechanism which can open and recoil the blade smoothly. 16mm wide tape blade for much easier reading, a useful measuring tape small enough to carry with you in a pocket.
    Wholesale $18.24
    400 Yards Golf Laser Rangefinder, 6X Magnification

    400 Yards Golf Laser Rangefinder, 6X Magnification

    T-LR-400
    Lower price golf laser rangefinder with 400 Yards measuring range, 6X magnification, LCD display golf mode, non-slope rangefinder delivers accurate distances within 1 yard, unit can be set for yards or meters.
    Wholesale $159.54
    Inside Micrometer, 5-30mm, 0.01mm

    Inside Micrometer, 5-30mm, 0.01mm

    T-IM
    Measuring tools 5-30mm inside micrometer at low price, 300g net weight, included wrench and setting rings. Tool steel measuring head can measure various internal dimensions, the measurement accuracy can reach 0.01mm.
    Wholesale $58.85
    Stainless Steel Vernier Caliper, 8 Inch/ 200mm

    Stainless Steel Vernier Caliper, 8 Inch/ 200mm

    T-VC-200
    High quality 8 inch/ 200mm vernier caliper forging measuring tool for both metric and imperial measurement. Industry standard accuracy ±0.02mm / 0.001 inch high precision. Plating process stainless steel ruler surface, clearly visible laser scale, excellent workmanship.
    Wholesale $55.58
    0-1500μm Coating Thickness Gauge

    0-1500μm Coating Thickness Gauge

    T-GM998
    Wholesale price paint thickness gauge. 0-1500μm measuring range, ±3% accuracy, 0.1μm resolution. Fe & NFe integrated probe can automatically measure iron-based surface coatings or aluminum and other non-magnetic substrates. A large 2.2 inch LCD-screen with backlight is easy to read measurements in the dark.
    Wholesale $140.71
    3 Line Rotary Green Laser Level

    3 Line Rotary Green Laser Level

    T-SL-03
    Fair price 3 lines self-leveling 360° rotating laser level for construction ceiling and picture hanging, 2 vertical line, 1 horizontal line, 1 plumb dot and 3 bright dots, 5m±1mm horizontal / vertical accuracy, digital LCD rechargeable lithium battery for 8 hours standby.
    Wholesale $167.24
    40m Laser Distance Meter

    40m Laser Distance Meter

    T-LDM-40
    Buy best laser distance meter measuring tool at wholesale price, +/- 1mm high accuracy and 40m wide measuring range. It can measure: Distance, length, area, volume, Pythagoras, maximum, minimum, addition, subtraction and continuous measurement that meets your different needs.
    Wholesale $82.09
    4-Piece Outside Micrometer, 0-100mm, 0.01mm

    4-Piece Outside Micrometer, 0-100mm, 0.01mm

    T-OM
    4-piece outside micrometer for sale, 0.01 accuracy, not only as a teaching tool, teaching students operate the micrometer to measure the external dimensions of the object, but also involve routine household measurements. Supplied measuring stick and wrench can calibrate micrometer.
    Wholesale $78.46
    5m (16 ft) Easy Read Steel Tape Measure

    5m (16 ft) Easy Read Steel Tape Measure

    T-STM-05
    Buy 5m (16 ft) easy read steel measuring tape at good price, thicker rubberized case for holding the tape safe, it can open and recoil the blade smoothly because of optimized internal mechanism, tape measure small enough to carry with you in a pocket.
    Wholesale $22.01
    600 Yards Laser Rangefinder for Construction/Golf/Hunting

    600 Yards Laser Rangefinder for Construction/Golf/Hunting

    T-LR-600
    Best digital laser rangefinder at affordable price, comes with 600 Yards measuring range, high ranging accuracy to +/- 0.3 Yards, 6X magnification, has multi functions of measuring distance, speed, angle, height and golf flag-lock, ideal for construction site, golf sports and hunting.
    Wholesale $225.92
    Stainless Steel Vernier Caliper, 12 inch/ 300mm

    Stainless Steel Vernier Caliper, 12 inch/ 300mm

    T-VC-300
    Wholesale 12-Inch / 300mm stainless steel vernier caliper durable measuring tool. Designed for precision measurements, graduation 0.02mm/0.001''. Features in hard stainless steel depth measuring bar, caliper for both imperial and metric measurement.
    Wholesale $82.63
    0-1700μm Coating Thickness Gauge

    0-1700μm Coating Thickness Gauge

    T-AR9332
    Best paint thickness gauge for sale, is the paint, anti-corrosion, electroplating, automotive industry, shipbuilding, aircraft manufacturing and other related industries ideal auxiliary manufacturing measuring tool. Can complete 0-1700μm thickness measurement, has the 0.1μm resolution, 20 groups data storage.
    Wholesale $200.38
    5 Line Rotary Green Laser Level

    5 Line Rotary Green Laser Level

    T-SL-05
    Best green laser level measuring tool for sale, 5 laser lines including 4 vertical line, 1 horizontal line, 1 plumb dot, 5 bright dots. With digital LCD rechargeable lithium battery for 8 hours standby, 360° rotary makes it easier to adjust the laser lines positions, along with the high accuracy.
    Wholesale $212.27
    6 inch Mechanical Measuring Wheel, Double-wheel

    6 inch Mechanical Measuring Wheel, Double-wheel

    T-DMW-6M02
    Small distance measuring wheel at affordable price, 6 inch (160mm) wheel diameter, mini double-wheel design, adopts mechanical gear driving device with reset function, +/- 0.5% accuracy and measuring range up to 99999.9m, a carry bag is provided.
    Wholesale $41.03
    60m Laser Distance Meter

    60m Laser Distance Meter

    T-LDM-60
    60m (197 ft) laser distance meter measuring tool for sale, high measuring accuracy up to +/- 1mm, equipped with 3 rechargeable NI-MH batteries, IP54 waterproof and dustproof protection, multiple measurement modes, ideal for home, construction and industries.
    Wholesale $114.43
    7.5m (25 ft) Easy Read Steel Tape Measure

    7.5m (25 ft) Easy Read Steel Tape Measure

    T-STM-07
    Best and fair price steel tape measure perfect for accurate measurement, 7.5m (25 ft) measuring range, 25mm wide tape blade, easy to read, can be temporary lock, makes it quick and easy to get an exact measurement.
    Wholesale $25.18

    A measuring tool is a tool for measuring a certain property. Including length, temperature, time, mass, force, current, voltage, resistance, sound, radio, refractive index and average dispersion. According to its usage, it usually can be divided into two types: General measuring tools and special measuring tools.

    measuring tools 2Measuring tools can also be divided into mechanical, optical, pneumatic, electric and photoelectric types according to their working principles. However, some modern measurement tools have developed into measurement tools that use the principles of precision mechanics, light, and electricity at the same time and combined with electronic computer technology. Therefore, this classification method is only suitable for measurement tools with a single working principle.

    A measuring tool that can measure the length or angle of various types of work-pieces, This type of measuring tool has the most varieties and specifications, and is also the most widely used, including gauge blocks, angle gauge blocks, polyhedral prisms, sine gauges, calipers, micrometers, dial indicators, multi-tooth indexing tables, comparators, and laser length measuring instruments , tool microscope, coordinate measuring machine, etc. 

    Generic measuring tools
    Common measurement tools are as follows:

    Rangefinder
    Rangefinder is also called distance meter, which is an instrument used for distance measurement based on the principles of electromagnetic wave, optics, acoustics and has a compact body. Two methods are generally used to measure distance: pulse method and phase method. The process of pulse distance measurement is as follows: the laser light emitted by the range finder is reflected by the object to be measured and then received by the range finder, and the range finder also records the round-trip time of the laser. Half of the product of the speed of light and the round-trip time is the distance between the rangefinder and the measured object. The accuracy of pulse method measuring distance is generally about +/- 1 meter. In addition, the blind zone of this type of rangefinder is generally about 15 meters.

    Since the laser is used for distance measurement, and the pulsed laser beam is a monochromatic light source with very concentrated energy, so do not use your eyes to look directly at the emitting port, Do not use the aiming telescope to observe the smooth reflecting surface, so as not to hurt people's eyes. Do not directly aim the launching port of the instrument at the sun during field measurement to avoid burning the photosensitive element of the instrument.

    hand held rangefinder

    Maintenance
    Check the appearance of the instrument frequently and remove the dust, grease, mildew, etc. on the surface in time.
    Use a soft dry cloth to clean the eyepiece, objective lens or laser emission window. Scribing with hard objects is strictly prohibited to avoid damage to optical performance.
    This machine is a high-precision instrument that integrates optical, mechanical, and electrical. It should be handled with care during use, and it is strictly prohibited to squeeze or fall from a high place to avoid damage to the instrument.

    Tape measure
    The tape measure can be rolled up because there is a spring inside the tape measure. When the tape measure is pulled out to measure the length, it actually stretches the length of the ruler and the spring.Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force, so the tape measure will roll up. 

    Precautions for maintenance and use

    • Keep the instrument clean before and after use.
    • Don't get severe impact or drop when using.
    • Since there is no measuring force pressure device, it needs to be used with proper and uniform measuring force.
    • Wipe and clean the surface dust after use.
    • Do not twist to prevent breakage during use.
    • When in use, it should be straightened and supported on a flat surface to prevent the measurement accuracy from being affected by the sagging of the ruler surface.

    tape measure

    Laser rangefinder 
    The laser rangefinder is an instrument that uses a certain parameter of the modulated laser to measure the distance to the target. The measuring range of laser rangefinder is 3.5~5000 meters. According to the ranging method, it is divided into phase method range finder and pulse method range finder. Pulsed laser range finder emits a beam or a sequence of short pulsed laser beams to the target when it is working. The photoelectric element receives the laser beam reflected by the target, and the timer measures the time from emission to reception of the laser beam, and calculates the distance from the observer to the target. The phase method laser rangefinder detects the distance by detecting the phase difference that occurs when the emitted light and reflected light propagate in space. The laser rangefinder is light in weight, small in size, simple to operate, fast and accurate, and its error is only one-fifth to one-hundredth of other optical rangefinders.

    laser rangefinder

    Laser rangefinder operating rules:

    • Turn on the switch, turn on the power, the "power、test indicator" is green. Touch the gear selection switch to select the appropriate gear.
    • Connect the two current output terminals of the measuring terminal of the meter to the two terminals of the conductor under test with two test wires, and the two voltage input terminals are also connected to the two terminals of the conductor under test.
    • The voltage terminal should be located inside the current terminal and as close as possible to the tested product to reduce the error introduced by the lead resistance.
    • After wiring, press the TESTE key, the "power, test indicator" is red, and the value displayed on the display is the measured resistance value.
    • When the measured conductor is open or the resistance is greater than the selected range, the first digit of the display shows "1", and the last three digits are off.

    precaution 

    • When the under-voltage symbol appears on the display, please replace the battery to ensure that you get the correct test value. Do not throw away the replaced old battery to avoid pollution.
    • The instrument should be protected from damp, rain, drop, exposure, etc.

    laser level
    The laser level is a level that guides the laser beam emitted by the laser device into the telescope tube of the level and emits it along the collimation axis. There are two types of laser level meter: a special laser level meter and a laser device attached to the level meter. It can be used with a level rod equipped with a photoelectric receiving target to perform leveling. Compared with optical level meters, laser level meters have the characteristics of high accuracy, long line of sight and automatic reading and recording. The laser level is an intelligent display device instrument. Its function is to be installed on a moving object, collect signals from the horizon, display the horizon in a larger field of view, and display the movement posture of the object in real time. If the laser level is corrected on the plane, it will be of great significance to prevent space disorientation; in addition, in medical testing, manual signals are used to adjust the position of the laser scanning line, which can perform certain pathological tests on the human brain, and it is also widely used in handicrafts and architectural decoration.

    laser level

    5 maintenance tips for laser level

    • The laser level is a precise optical instrument. Correct and reasonable use and storage have a great effect on the accuracy and life of the laser level.
    • Avoid direct sunlight and do not disassemble the laser level casually.
    • When the laser level malfunctions, it should be repaired by professionals or repair shops familiar with the structure of the laser level.
    • Each fine-tuning should be turned gently, not too much force. Lenses and optical films of the laser level are not allowed to touch with hands.
    • After each use, the laser level should be wiped clean and kept dry.

    Measuring wheel 
    Measuring wheels are also known as mechanical distance measuring vehicles, digital display measuring wheels, which are widely used in professional surveying and mapping operations, road engineering, pipeline laying engineering, wire and cable engineering and other construction operations measurement and evaluation. It can be used for the construction measurement of garden landscape and golf course, the measurement of the distance and location of traffic accidents, and the measurement of farmland construction and management. The mechanical distance measuring wheel adopts high-quality precision design, small, light and durable. The 300MM measuring wheel is easy to use, what you need to do is just to press the reset button of the counter and then the count increases when the measurement goes forward and decreases when it goes backward.

    Point-to-point measurement method

    Place the distance measuring wheel tool on the ground, so that the point pointed by the positioning pin coincides with the starting point.
    Move the distance measuring wheel until the point pointed by the positioning pin coincides with the end point.
    Record the measured reading of the dial, this reading is the correct distance.

    measuring wheel

    Tips for measuring accuracy of measuring wheels
    The distance measuring wheel has very high requirements for measurement accuracy and stability. The biggest error source of the measuring wheel is the deformation of the measuring wheel tire through online investigation. Many factors such as temperature changes, air pressure changes, and applied pressure changes are prone to non-negligible deformation of the tires of the gauge wheel, which greatly affects the measurement accuracy. Moreover, the distance measuring wheel is used for medium and long distance measuring work, and the small deformation will always be superimposed in the rolling of the tire circle by circle, and the calculated measurement length will cause a large measurement error. Therefore, the measuring wheel must be strictly tested before the measurement work to ensure the reliability of the measurement data.

    Vernier calliper
    Vernier calliper is a measuring tool for measuring length, inner and outer diameter, and depth. The vernier caliper consists of a main ruler and a sliding vernier attached to the main ruler. The main ruler is generally in millimeters, and there are 10, 20 or 50 divisions on the vernier. According to the different divisions, the vernier caliper can be divided into tenth-degree vernier caliper, 20th-degree vernier caliper, fifty-point-degree vernier caliper, etc. The vernier is 9mm with 10 scale, 19mm with 20 scale, and 49mm with 50 scale.

    vernier calliper

    Precautions for use
    Wipe the measuring claws clean with a soft cloth, close them together, and check whether the vernier is aligned with the zero mark of the main ruler. If it is aligned, it can be measured: if it is not aligned, the zero error should be recorded: the zero scale line of the vernier is called positive zero error on the right side of the zero scale line on the ruler body, and the negative zero error on the left side of the zero scale line on the ruler body (this The method of specifying the file is consistent with the number axis. The origin is positive on the right and negative on the left. When measuring, hold the ruler with your right hand, move the cursor with your thumb, and hold the object with the outer diameter (or inner diameter) to be measured in your left hand, so that the object to be measured is located between the outer measuring claws, and when it is in close contact with the measuring claws, you can reading.

    Special measurement tools

    • A measuring tool used to measure a certain type of geometric parameters, shape and position errors (see form and position tolerance) It can be divided into:
      Straightness and flatness measuring tools, common ones include straightedge, flat ruler, flat crystal, level, autocollimator, etc.;
    • Surface roughness measurement tools, they commonly are surface roughness samples, light section microscope, interference microscope and surface roughness measuring instrument, etc.
    • Roundness and cylindricity measuring tools, including roundness meter, cylindricity measuring instrument, etc.
    • Gear measuring tools, common gear comprehensive inspection instrument, involute measuring instrument, circumferential section measuring instrument, lead meter, etc.
    • Thread measuring tools.

    Other special measuring tools
    It is only suitable for measuring tools that measure the size, surface roughness, shape and position error of a specific workpiece. Common ones are automatic inspection machines, automatic sorting machines, single-size and multi-size inspection devices (see automatic measurement).

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