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    Concrete Portable Moisture Detector

    Concrete Portable Moisture Detector

    T-MM-7822S
    Concrete portable moisture detector for sale. This moisture meter is lightweight with a compact design and a large, easy-to-read 3-digit, 17mm LCD display. It offers a 1% resolution, measuring moisture levels from 1% to 40% with minimal error ±(1%Rh+1). The humidity meter works in temperatures from -10°C to 60°C and 0-70% humidity. The moisture detector has four specific gears for different materials: marble, granite, cement, concrete, plaster, brick, clay, and mortar.
    $146.78
    High Precision Digital Thickness Gauge, 120mm Depth, 0.001mm Resolution

    High Precision Digital Thickness Gauge, 120mm Depth, 0.001mm Resolution

    T-XH1012-1
    The digital thickness gauge with 120mm depth allows for measuring thicker materials, while the high resolution of 0.001mm ensures that measurements are highly accurate. Made of high-quality materials, ensuring durability and long-lasting use.
    $259.54
    High Precision Digital Thickness Gauge, 30mm Depth, 0.001mm Resolution

    High Precision Digital Thickness Gauge, 30mm Depth, 0.001mm Resolution

    T-XH103-1
    Introducing our high-precision digital thickness gauge with a 30mm jaw depth and a resolution of 0.001mm. This tool is designed for accurate measurement of the thickness of various materials, including metal sheets, plastic films, and more. Equipped with a large LCD screen, this gauge displays clear and precise readings, making it easy to use and highly efficient. The 30mm jaw depth allows for measuring thicker materials, while the high resolution of 0.001mm ensures precision and accuracy.
    $238.00
    Mini Laser Distance Meter, 40/50/60m

    Mini Laser Distance Meter, 40/50/60m

    T-MLDM
    Mini laser distance meter for sale, compact size is convenient to carry around. It supports three measuring distances of 40 meters, 50 meters and 60 meters, and the accuracy can reach ±2mm to ensure the accuracy of measurement. The laser distance meter supports a variety of measurement modes, including continuous measurement, area measurement, hook measurement and so on.
    $89.74
    Portable Air Quality Monitor, HCHO/TVOC/Temperature/Humidity

    Portable Air Quality Monitor, HCHO/TVOC/Temperature/Humidity

    T-AQM-JMS12
    Portable air quality monitor offers precise detection of formaldehyde (HCHO), total volatile organic compounds (TVOC), temperature, and humidity. Equipped with a professional-grade semiconductor gas sensor, it ensures accurate readings across a broad detection range. The air quality tester has a user-friendly LCD display and operates efficiently with a long-lasting 700mAh lithium battery. With advanced algorithms, it resists interference for precise measurements, while the 3D airflow design enhances sampling accuracy. Compact and easy to operate with one button, it includes smart alerts and a clear battery indicator, making it an ideal choice for monitoring air quality at home or on the go.
    $75.63
    Portable Digital Thickness Gauge, 120mm Depth, 0.01mm Resolution

    Portable Digital Thickness Gauge, 120mm Depth, 0.01mm Resolution

    T-XH1012
    Do not miss our grand launch portable digital thickness gauge with a 120mm jaw depth and a resolution of 0.01mm. The 120mm jaw depth allows for measuring thicker materials, while the high resolution of 0.01mm ensures precision and accuracy.
    $176.46
    Portable Digital Thickness Gauge, 30mm Depth, 0.01mm Resolution

    Portable Digital Thickness Gauge, 30mm Depth, 0.01mm Resolution

    T-XH103
    Portable digital thickness gauge on Tool.com, with a measuring range of 0-10mm, a jaw depth of 30mm, and a resolution of 0.01mm. Adopt a ceramic flat head for accurate measurement and durable fixation.
    $148.77
    Portable pH Meter, ORP Test / Temperature Compensation

    Portable pH Meter, ORP Test / Temperature Compensation

    T-PHM-AE6601
    Portable pH meter delivering measurements of pH, ORP, and automatic temperature compensation, covering a range from -5.0°C to 65.0°C. pH detector supports an ORP measuring range of -1999 to +1999mV, with a range of 0.0~14.00 pH and a resolution of 0.01 pH. With ±0.02 pH accuracy and three-point calibration (4.00/6.86/9.18), the ph machine guarantees reliable and repeatable results. Uesd for water quality testing, industrial fluid control, environmental monitoring, and laboratory chemical analysis.
    $229.99
    Industrial pH Meter for Wastewater/Laboratory/Flue Gas Desulfurization

    Industrial pH Meter for Wastewater/Laboratory/Flue Gas Desulfurization

    T-PHM-GWQ
    Industrial pH meter supports a range from 0 to 14 pH, with an optional ORP range of ±2000mV, making it versatile for diverse applications like wastewater treatment, laboratory, flue gas desulfurization. The meter's RS485 (MODBUS RTU) and 4-20mA output make it easy to integrate with control systems, handling up to 750Ω for remote monitoring. Temperature compensation ensures accurate pH readings from -10°C to 130°C.
    $249.89
    Telescope Laser Distance Meter, 600/800/1000/1500m

    Telescope Laser Distance Meter, 600/800/1000/1500m

    T-TLDM
    Telescope laser distance meter for sale comes with a variety of measuring range options of 600m, 800m, 1000m and 1500m to suit different needs.With 6x magnification and 7° field of view, it is easy for you to get long distance data. With ±(1.0m+Dx0.3%) precise measurement error and flagpole locking function, the operation is simple and accurate.
    $166.34
    Benchtop pH Meter, 6 in 1 pH/ORP/Temp/TDS/EC/CF

    Benchtop pH Meter, 6 in 1 pH/ORP/Temp/TDS/EC/CF

    T-PHM-PHS26C
    6 in 1 benchtop pH meter can measure pH, ORP, Temp, TDS, EC, CF. The pH detector perfect for water treatment, aquariums, agricultural planting, aquaculture, wastewater management, and laboratory research. The pH meter also has Versatile interface design, high-definition LCD screen, automatic temperature compensation, data storage, and easy manual calibration.
    $196.66
    4 in1 pH Pen, pH/EC/TDS/Temp

    4 in1 pH Pen, pH/EC/TDS/Temp

    T-PHM-MPH300
    Good price 4 in1 pH pen allows for simultaneous detection of pH, EC, TDS, temperature parameters, displayed on a large screen. Test range of 0~14pH, 0~9999us/cm, 0~9999ppm, 0~60℃(32~140℉). With high precision and automatic temperature compensation, this ph instrument has accurate measurements. The smart calibration system simplifies the calibration process, while the ability to switch between Celsius and Fahrenheit enhances flexibility.
    $63.68
    pH Meter for Fish Tank with Temperature Compensation

    pH Meter for Fish Tank with Temperature Compensation

    T-PHM-PH991
    pH meter for fish tank has a measurement range of 0.00 to 14.00 PH and a temperature range of -50℃ to 70℃ (-58℉ to 158℉). The resolution for PH is 0.01PH, while the temperature resolution is 0.1℃ (0.2℉). It offers an accuracy of ±0.1PH for PH and ±1.0℃ (±2.0℉) for temperature. The ph meter instrument operates on a DC6V battery and includes temperature compensation between 0℃ and 50℃, with an operating temperature range of 0℃ to 50℃. Suitable for long-term monitoring of water tank conditions.
    $65.99
    pH Multimeter, pH/Salt/Temp/TDS/EC

    pH Multimeter, pH/Salt/Temp/TDS/EC

    T-PHM-MDW5L
    The pH multimeter tests pH/Salt/Temp/TDS/EC, TDS from 0-10000ppm and 10.1-200ppt, EC from 0-10000μS/cm, 10.01-19.99ms/cm, and 20.1-400mc/cm, pH from 0.01 to 14.00, and Salt concentration from 0-10000ppm, 10.1-200.0ppt, and 0.00-25.00%. The ph detector also measures temperature from 0.1 to 60℃ (32.0 to 140°F), with an operating temperature range of 0-60℃ (32-140°F). Suitable for aquaculture, drinking water, swimming pools, aquariums, hydroponics, laboratories, catering industry.
    $55.75
    3 in 1 Pen Type pH Meter, pH/TDS/Temp

    3 in 1 Pen Type pH Meter, pH/TDS/Temp

    T-PHM-EZ9901
    3 in 1 pen type pH meter measures TDS within a range of 1-19999ppm, pH from 0.00 to 14.00, and temperature between 0-60°C (32-140°F). pH tester offers a resolving power of 1ppm for TDS and 0.01pH for pH. The accuracy is ±2% for TDS, ±0.05pH for pH, and ±0.5°C for temperature. It features temperature compensation within 0-60°C and operates in environments with temperatures from 0-60°C and 100% relative humidity. The device is powered by three 1.5V batteries.
    $38.92
    Handheld pH Meter for Industrial Water Testing

    Handheld pH Meter for Industrial Water Testing

    T-PHM-AS218
    Handheld ph meter offers a wide measurement range from 0.00 to 14.00 pH with a basic measurement error of ±0.05 and stability of ±0.03. pH detector also has an mV measurement range of -1400 mV to +1400 mV. The portable pH meter includes solution temperature compensation between 0°C and 60°C, supports measured liquid temperatures of 5°C to 60°C, and operates in an environment from -10°C to 60°C. With repeatability of 0.03, it can record maximum and minimum values. Additional features include a backlight display, data hold function, low voltage reminder, and the ability to function in an environment with temperatures up to 35°C and humidity up to 80%.
    $182.53
    Soil pH Monitor, Soil Moisture/Temperature/pH

    Soil pH Monitor, Soil Moisture/Temperature/pH

    T-PHM-SGS07
    Soil pH monitor operates within a temperature range of 0°C to 60°C (32°F to 140°F) and measures soil moisture from 0% to 90%, with a pH range of 3 to 9. Powered by 3 AAA alkaline batteries, it provides a battery life of approximately 3 months. The pH meter includes a test range for soil NPK (Nitrogen, Phosphorus, and Potassium) from 0 to 1999 mg/kg. Highly functional for agricultural or gardening applications.
    $62.89
    Pool pH Tester for Cl & pH

    Pool pH Tester for Cl & pH

    T-PHM-MDYLF01
    Swimming pool ph tester offers a pH measurement range of 5.5 to 9.0 and a chlorine (Cl) measurement range of 0.2 to 3.0 ppm. with a measurement accuracy of 0.1 and a resolution of 0.1. The ph cl tester is powered by a 1.5V supply and is made from durable ABS material. Suitable for swimming pools, waterworks residual chlorine testing.
    $64.86
    pH Tester for Aquarium, Online Wall-mounted

    pH Tester for Aquarium, Online Wall-mounted

    T-PHM-295
    The pH tester for aquariums, an online wall-mounted model, offers a pH measurement range from 0.00 to 14.00 with an accuracy of ±0.1 and a resolution of 0.01. pH detector measures temperature from -5.0°C to 60.0°C, with a temperature accuracy of ±0.5°C and a resolution of 0.1°C/F, and features built-in temperature compensation. A screen size of 44×26mm with backlight support.
    $110.88
    pH Meter Electrode for Strong Acid or Alkali

    pH Meter Electrode for Strong Acid or Alkali

    T-PHME
    The pH meter electrode for pure water can be used in strong acid or alkali. With a measuring range from 0 to 14 pH and an accuracy of ±0.02 pH. The electrode operates effectively within a temperature range of 0 to 100°C, equipped with an internal temperature compensation sensor (NTC 10K). The electrode’s zero position is calibrated at 7±0.3 pH and compressive strength can withstand up to 0.6 MPa, and the slope is greater than 98%.
    $185.99

    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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