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    Fixed Ultrasonic Flow Meter for Liquids

    Fixed Ultrasonic Flow Meter for Liquids

    T-FLOW-FUFM
    The quality supplier's fixed ultrasonic flow meter for liquids has an excellent measuring accuracy in the range of 0.015.0 m/s for DN25mm, 600mm pipe diameters. It ensures accurate flow monitoring whether it is water, oil or other single medium liquids. It supports 4~20mA analog output and RS485 communication interface and is compatible with MODBUS protocol to meet various industrial requirements.
    $886.98
    Handheld Sound Level Meter, 30 to 130 dB

    Handheld Sound Level Meter, 30 to 130 dB

    T-HSLM
    High quality handheld noise detector, this professional sound meter has LCD display, measurement range 30~130dB, optional A frequency and C frequency weighting, measurement accuracy up to ±1.5 dB, for accurate detection of different frequency noise.
    $118.25
    Handheld Vane Anemometer, Digital Wind Speed Meter

    Handheld Vane Anemometer, Digital Wind Speed Meter

    T-A-1603A
    Unleash precision with TooL's professional handheld vane anemometer, featuring a detachable sensor to minimize interference, ensuring accurate wind speed, volume, temperature, and humidity readings in various units. Get your ideal measuring partner at low price today.
    $107.62
    Hot Wire Anemometer, 0.1~25 m/s, Thermal Wind Speed Meter

    Hot Wire Anemometer, 0.1~25 m/s, Thermal Wind Speed Meter

    T-A-HT-9829
    Elevate your wind speed monitoring with our portable hot wire anemometer at a low price. Designed for precision and speed, it measures wind speeds from 0.1 to 25 m/s with a resolution of 0.01 m/s. Whether you’re a pro or an enthusiast, our thermal anemometer is the smart pick.
    $181.58
    Hot Wire Anemometer, 0~30 m/s, Thermal Wind Speed Meter

    Hot Wire Anemometer, 0~30 m/s, Thermal Wind Speed Meter

    T-A-AR866A
    Cheap and portable hot wire anemometer that can be handheld for easy outdoor use. It has a split design with a high sensitivity thermal induction probe, which is extendable and bendable, making it the best choice for wind speed measurement for personal users.
    $257.14
    Insertion Electromagnetic Flow Meter for Water, DN100-DN3000

    Insertion Electromagnetic Flow Meter for Water, DN100-DN3000

    T-FLOW-IEFM
    The insertion electromagnetic flow meter for water is available in a wide range of sizing options from DN100 to DN3000 to accommodate different pipe sizes. The innovative insertion construction allows for easy installation and removal at low pressure or under pressure without stopping the water supply.
    $1,797.16
    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.
    $75.34 Wholesale $58.85
    Interconnected Smoke Detector, Wireless Fire Alarm

    Interconnected Smoke Detector, Wireless Fire Alarm

    T-SD-S100B-CR
    High quality and low price interconnected smoke detector is on sale. This product is characterized by high sensitivity, supports both 433 or 868MHZ frequencies, and can be controlled remotely. The alarms can be interconnected up to 30 to cover every room, no matter for home or commercial use, it will give you the strongest security.
    $59.36
    Intergrated Handheld Vane Anemometer, Digital Wind Speed Meter

    Intergrated Handheld Vane Anemometer, Digital Wind Speed Meter

    T-A-1602C
    New mini handheld anemometer for sale! It is fitted with a highly sensitive eight-wheeled wind vane as well as an LCD HD display, making it accurate and easy to carry. This wind gauge can measure wind speed, volume and temperature at the same time, suitable for home and outdoor occasions.
    $91.26
    Mass Flow Meter for Gas, Air/H2/O2, 0~15/50/120/300/800L/min

    Mass Flow Meter for Gas, Air/H2/O2, 0~15/50/120/300/800L/min

    T-FLOW-GMFM
    This mass flow meter for gas is precision designed to detect a variety of gases: such as air, hydrogen, oxygen, carbon dioxide, etc. The flow rate ranges from 0~15L/min to 800L/min, which can be flexibly selected according to the needs. The output signal supports various formats, 4-20mA, RS485, pulse 0~5VDC, suitable for different industrial control systems.
    $2,046.79
    Mini Clamp Meter, Resistance/Frequency/NCV Test

    Mini Clamp Meter, Resistance/Frequency/NCV Test

    T-MCM
    Mini clamp meter has AC current measurement up to 400A, DC and AC voltage measurement up to 600V, resistance measurement up to 10MΩ, and frequency measurement up to 1000kHz, with high accuracy. Special features include Non-Contact Voltage (NCV) detection with audible and visual alerts, diode testing, a continuity buzzer, data hold functionality, automatic power-off after 15 minutes of inactivity, and 100% range overload protection. The backlit LCD display and inspection light ensure usability in low-light environments.
    $81.99
    Mini Gas Mass Flow Meter, NO2/Air/O2/CO2, 0-2/20/50L/min

    Mini Gas Mass Flow Meter, NO2/Air/O2/CO2, 0-2/20/50L/min

    T-FLOW-MGFM
    This mini gas mass flow meter adopts high precision sensor to ensure the accuracy of flow measurement, providing four flow ranges of 0-2L/min, 0-15L/min, 0-20L/min and 0-50L/min for selection, suitable for a wide range of gas detection, such as air, NO2, N2, O2, Ar, CO2, and the high repeatability ensures the stability and consistency, it is the preferred choice for purchasing flow meters.
    $445.58
    Mini Sound Level Meter, 30 to 130 dB

    Mini Sound Level Meter, 30 to 130 dB

    T-MSLM
    Tool online shop offers a sound level meter is a stable performance, safe, reliable mini digital noise level meter, can measure 30 ~ 130dB noise range, the new Bluetooth communication function models are optional, the user in the use of more convenient. And this decibel meter support data logging data export (PDF/Excel/trend graphs), maximum/minimum value measurement instructions.
    $95.79
    Noise Level Detector, 30/40 to 130 dB

    Noise Level Detector, 30/40 to 130 dB

    T-NLD
    Tool online shop offers a high quality Noise Level Detector with a wide range of noise detection from 30/40 to 130 dB and professional A/C weighting to provide accurate measurements in different scenarios. The sound level meter is easy to operate, portable and suitable for all kinds of noise measurement needs, especially for environmental noise management.
    $523.49
    Outdoor Air Quality Monitor, TVOC/CO/CO2/HCHO/Humidity/Temperature

    Outdoor Air Quality Monitor, TVOC/CO/CO2/HCHO/Humidity/Temperature

    T-AQM-2CO16TB
    Outdoor air quality monitor has CO (carbon monoxide), C02 (carbon dioxide), HCHO (formaldehyde), TVOC (total volatile organic compounds), temperature and humidity detection function, six functions into one. Using cell phone wireless APP, monitor the data in real time, with 60 days data storage. Air quality tester is powered by a 1200 mAh lithium battery, recharged via a DC 5V 1A micro USB interface. Small size is easy to carry around outdoors.
    $92.69
    Oval Gear Flow Meter for Oil, DN10-DN200

    Oval Gear Flow Meter for Oil, DN10-DN200

    T-FLOW-OGFM
    This excellent oval gear flow meter for oil is suitable for DN10-DN200 pipe diameters, supports accurate measurement of diesel oil and gasoline, and is easy to install. Output signals include pulse, 4-20 mA and RS485 to meet the needs of different application scenarios.
    $896.35
    Polycarbon 3 Cups Anemometer, Mechanical Wind Speed Meter

    Polycarbon 3 Cups Anemometer, Mechanical Wind Speed Meter

    T-A-BRW200-1002
    Introducing the new polycarbon 3 cups anemometer by TooL, currently available for purchase. Choose between two output modes: 4-20mA and RS485. Designed to be lightweight and portable, this wind gauge provides high measurement precision and strong wind resistance, making it ideal for outdoor use.
    $83.17
    Portable Ammonia (NH3) Gas Monitor, 0 to 20/200/1000 ppm

    Portable Ammonia (NH3) Gas Monitor, 0 to 20/200/1000 ppm

    GD200-NH3
    Portable ammonia gas monitor provides you with fast and accurate detection of ammonia concentration, the detection range can be selected from 0 to 20/200/1000 ppm. the device is equipped with sound and light vibration alarms, Chinese/English bilingual display, and support for USB data transfer.
    $828.16
    Portable Carbon Dioxide (CO2) Gas Monitor, 0 to1000/10000/20000 ppm

    Portable Carbon Dioxide (CO2) Gas Monitor, 0 to1000/10000/20000 ppm

    GD200-CO2
    The best portable carbon dioxide (CO2) gas monitor, covering 0 to 1000/10000/20000ppm/0 to 100% VOL measurement range optional. It can detect CO2 concentration in real time with accurate and reliable data, and equipped with rechargeable battery for long life. Compact and portable design, suitable for many occasions to protect air safety.
    $969.23
    Portable Carbon Monoxide (CO) Gas Monitor, 0 to 1000/2000/5000 ppm

    Portable Carbon Monoxide (CO) Gas Monitor, 0 to 1000/2000/5000 ppm

    GD200-CO
    Portable carbon monoxide (CO) monitor is a rapid response, accurate gas detector with built-in sampling pump, fast sampling speed, large flow rate and 0~1000ppm, 0~2000ppm/0~5000ppm measurement range can be optional, compact and easy to carry. The housing is made of high-strength special engineering plastics, which can be used in a variety of environments and occasions.
    $398.76

    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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