Reviews Distance Measuring Devices

Handheld Digital Laser Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Measuring Range: 2.5-99999RPM

  • Measuring Range:2.5-99999RPM (Need to cooperate with reflective strip measurement).
  • Measure RPMs of motors, machinery such as circular saws, speed of a lathes and other rotating devices.
  • Accurate to +/- 0.02 percent and capable of measuring at a distance from 2-20 inches(50-500mm).
  • RPMs measured over 0.5 second sampling time.
  • Readings are displayed on a large, easy-to-read LCD screen.
  • stores last, minimum, and maximum reading.
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Etekcity Infrared Thermometer 800 (Not for Human) and Meat Thermometer Black

  • Accurate Readings: Enjoy accurate measurements with a temperature range of -58°–572°F / -50°–300°C. ±1℃ accuracy from-4°F-302°F/-20°C to 150°C..
  • Clear Display: The large 3x1.4cm backlit LCD display provides crisp and clear results..
  • Safe Measurements: The long temperature probe makes measuring safe and easy..
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Etekcity Infrared Thermometer 800 (Not for Human) and Meat Thermometer Red

  • Accurate Readings: Enjoy accurate measurements with a temperature range of -58°–572°F / -50°–300°C. ±1℃ accuracy from-4°F-302°F/-20°C to 150°C..
  • Clear Display: The large 3x1.4cm backlit LCD display provides crisp and clear results..
  • Safe Measurements: The long temperature probe makes measuring safe and easy..
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Handheld Digital Laser Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Measuring Range: 2.5-99999RPM with 10 Reflective Tapes

  • No-Contact Gun type digital tachometer with stable performance.Added: 10 pcs Silver gray to prevail in kind of basic white Wide angle reflectivity taps.
  • Measure RPMs of motors, machinery such as circular saws, speed of a lathes and other rotating devices.
  • Accurate to +/- 0.02 percent and capable of measuring at a distance from 2-20 inches(50-500mm).
  • RPMs measured over 0.5 second sampling time.
  • Readings are displayed on a large, easy-to-read LCD screen.
  • stores last, minimum, and maximum reading.
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EHDIS Digital LCD Photo Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Style Includes 10 Reflective Tapes

  • ** important: Package included reflective sheeting tape, you must stick this tape(cut-to-size) onto the object and begin measure)** No-Contact Gun type digital tachometer with stable performance..
  • Automatic and Manual Measurement Functions. Measuring Range: 2.5 to 99999 RPM. Added: 10 pcs Silver gray to prevail in kind of basic white Wide angle reflectivity taps.
  • Readings are displayed on a large, easy-to-read LCD screen.
  • stores last, minimum, and maximum reading.
  • Measure RPMs of motors, machinery such as circular saws, speed of a lathes and other rotating devices.
  • Accurate to +/- 0.02 percent and capable of measuring at a distance from 2-20 inches(50-500mm).
  • RPMs measured over 0.5 second sampling time.
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Laser Tape Measure - 229Ft Laser Measurement Tool Ft/In/M Unit Switching, High Accuracy Digital Tape Measure with Backlit LCD and 2 Bubble Levels, Waterproof Laser Measure Distance, Area, Volume (70m)

  • HIGH ACCURACY - The laser type is Class 2, MAX OUTPUT.
  • EASY TO USE ＆ HIGH DEFINITION - Are you facing the bulky metal measuring tape flinging back onto your hands or head? Our digital tape measure can help you measure anywhere even in rooms that are cluttered with furniture easily. Specially designed with a high-visibility LCD backlit screen, our laser measure has higher definition digitals compared to other brands. Not worried about hard viewing even with relatively poor eyesight or using the laser measuring tape in daylight or dark areas.
  • VERSATILITY - You can switch freely from M/In/Ft via button (-/U) on the digital measuring tape. Our laser distance measure gets 20 groups data memory, automatic shutdown without operation 3mins, and mute function available in library, classroom, etc. The electric tape me....
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Laser Tape Measure - 165Ft Laser Measurement Tool Ft/In/M Unit Switching, High Accuracy Digital Tape Measure with Backlit LCD and 2 Bubble Levels, Waterproof Laser Measure Distance, Area, Volume (50m)

  • High Accuracy - The laser type is Class 2, MAX OUTPUT003c1mW, λ=620-690nm Equipped with PC optical curved lens, our laser tape measure features high light transmittance to ensure more accurate distance laser measurement. Measure distance up to ±1/16inch to within 165ft and just need 0.3s to get a quick measuring result, accuracy up to three decimals to the right point. A vertical and horizontal bubble level ensures more precise measuring from a level surface when using the laser measurement tool.
  • Easy to Use ＆ High Definition - Are you facing the bulky metal measuring tape flinging back onto your hands or head? Our digital tape measure can help you measure anywhere even in rooms that are cluttered with furniture easily. Specially designed with a high-visibility LCD backlit screen, our laser measure has higher definition digitals compared to other brands. Not worried about hard viewing even with relatively poor eyesight or using the laser measuring tape in daylight or dark areas.
  • Versatility - You can switch freely from M/In/Ft via button (-/U) on the digital measuring tape. Our laser distance measure gets 20 groups data memory, automatic shutdown without operation 3mins, and mute function available in library, classroom, etc. The electric tape....
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Measuring Wheel Digital Display, 12'' Folding Portable Distance Measurement Wheel with Measuring Area Function

  • [Foldable and Easy to Carry]: The measuring wheel can be folded into three parts for easy transportation and storage in a backpack (included).  It can extended up to 40in when you use it, and when folded, it can extended up to 15in. Easy to carry and save your space..
  • [Digital Display]Digital LCD screen with backlight on handle clearly displays measurement results and convenient to work in the dark..
  • [99,999 ft Maximum Capacity] Measuring in feet and inches for US, the rolling measurement wheel measures up to 9999 ft, U.S measuring units. The measuring accuracy of distance measuring wheel is ± 0.5%。.
  • [Durable and Light Material]Distance measuring wheel tires are made of ABS thickened rubber, coated with 6mm wear-resistant rubber, thickened control shaft, and folding lock is made of composite material for long service life..
  • [Who use it]The measuring wheel for construction is suitable for various of people: greening workers, construction workers, real estate appraisers, landscaping workers and homeowners. Measuring wheel is suitable for all environments - grass, concrete, gravel, soil, etc..
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Tilswall Infrared Thermometer, -58°F to 1472°F(-50~800°C), Non-Contact Digital Laser Thermometer with Probe, Adjustable Emissivity, High/Low Temperature Alarm, for Cooking/BBQ/Freezer(NOT for Human)

  • ►HIGH ACCURACY: Tilswall infrared temperature measuring gun designed with the latest temperature sensor technology and the distance to spot ratio is 12: 1 can measure targets at a longer distance, the larger the object, the farther the measurement distance.
  • the smaller the object, the closer the measurement distance.Which can reads value of high accuracy up to ±1.5%,Response time within 0.5 seconds.(For the best accuracy the thermometer should approximately be 14inch/ 36cm away from the object).
  • ►ADJUSTABLE EMISSIVITY:In order to improve the accuracy of the infrared thermometer gun, Tilswall infrared thermometer is available adjusting the emissivity 0.1-1.0 according to the surface material being measured.The greater the emissivity, the stronger the radiation ability of the surface of the object. The emissivity of most organic or metal oxide surfaces is between 0.85 and 0.98. (The default emissivity of this thermometer is 0.95)..
  • ►VARIOUS USAGE:This infrared thermometer with probe can not only measure the surface temperature of objects, but also measure the internal temperature of foods such as meat. This infrared temperature measuring gun can measure surface temperature ranging from -58℉~1472℉ / -50℃~800℃, the probe can measure the inte....
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ALMOCN 6PCS HC-SR04 Ultrasonic Sensor Distance Module Measuring Ranging Sensor for Arduino

  • Ultrasonic hc-sr04 distance measuring transducer sensor, it consists of ultrasonic transmitter, receiver, and control circuit..
  • Hc-sr04 Test Distance following formula: L = 1/2 × T × C ( L is the distance, T is the time between the emission and reception, and C is the sonic speed).
  • Mode of connection:4 pins VCC, Trig (control side), echo (receiver), out (empty),GND.
  • Application:for Robot obstacle avoidance, object distance measuring, liquid level detection, public security, parking lot detection..
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Laser Measure, Green Beam Laser Measuring Device with Angle Sensor, 196Ft M/In/Ft Laser Distance Measure Backlit LCD Laser Distance Meter for Pythagorean, Distance, Area and Volume Measuring

  • [BRIGHTEN GREEN BEAM] When using a traditional red beam laser measuring tape, the biggest pain point is that it is not easy to see the emitted laser light during long distance measurement. So we upgraded the red laser beam to a green laser beam. We were surprised to find that the laser brightness of the laser tape measure had increased by three times. Within the range of the laser measuring tool. Even in a bright work environment. You can also see where the laser light is at a glance..
  • [MULTIPLE MEASUREMENT MODES] This is not just a laser distance measuring tool that can measure distance. Area, volume, and Pythagorean measurement are the most basic functions. Due to the introduction of the angle sensor, this laser distance measure tool can perform more diverse measurement modes, for example, you can measure the distance from the window to the ground with one click. Or use this laser measure tool to measure the height of the second floor window without close contact..
  • [PRACTICAL FUNCTION] This laser measure can perform most measurements in 0.5 seconds. The backlit screen can be used at night. The mute function is used in quiet environments such as libraries. Data addition and subtraction calculations and 20 sets of data storage free hands from pen ....
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Sewell SW-32988 Direct BlastIR Wireless Pro IR Repeater, Remote Control Extender Kit (IR Emitter and Receiver),Black

  • Note Some devices use RF instead of IR for remote control. The Blast IR Wireless Pro only works with IR devices. Please check the signal type of your remote to ensure it is IR before ordering. .Wireless Distance: 200m (650 ft.), distance may vary due to obstacles, IR Receiver Distance: 7m (30 ft.)Incompatibility : Yamaha HTR 6140, Arris DCX 3520E-M, OSD ATM-7 Speaker Selector.
  • BlastIR Pro receivers are directional and require facing the receiver towards where you will be using the remote. To improve reception and widen the angle of control, we recommend using the included IR receiver cable connected to the main receiver unit..
  • BlastIR Pro Emitters work best when placed within a few inches of the devices you want to control. For best results we recommend attaching the included optional IR emitter cables so that the emitter is directly over the IR receiver of up to two devices. These are designed to stick directly to the devices that you are trying to control rather than sitting in front of them..
  • Included USB and AC power cables, extra IR cables, mounting adhesive, and rubber feet..
  • Wireless Distance: 200m (650 ft.), distance may vary due to obstacles, IR Receiver Distance: 7m (30 ft.).
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HiLetgo Analog Current Meter Sensor Module AC 0~5A Ammeter Sensor Board Based on TA12-100 for Arduino

  • Operating Principle -- Ultrasonic hc-sr04 distance measuring transducer sensor, it consists of ultrasonic transmitter, receiver, and control circuit..
  • HC-SR04 ultrasonic sensor module -- Using IO trigger for at least 10us high level signal, when triggered it sends out a series of 40KHz ultrasonic pulses and receives echo from an object, the duration of the signal is the time from sending ultrasonic to returning..
  • Test Distance Formula -- The distance between the unit and the object is calculated by measuring the traveling time of sound and output it as the width of a TTL pulse,hc-sr04 test distance following formula -- L = 1/2 × T × C ( L is the distance, T is the time between the emission and reception, and C is the sonic speed ).
  • Package Include -- 5 X HC-SR04 Ultrasonic Sensors , 10 X Female-Male Dupont Cables , 10 X Female-Female Dupont Cables , 3 X HC-SR04 Mounting Bracket.
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