ReviewsDistance Measuring System

Thermometer for Fever, Non-Contact Forehead Thermometer with Object Mode Function, Touchless Infrared Digital Temperature Gun, Fever Alert and Set Memory Recall, Care Thermometer for Adults(Blue)

✅【Non-Contact Thermometer】The best moving distance of the non-contact thermometer is 3-5 cm (1.2-2 inches), and temperature & surface at a safe distance. The thermometers suitable for adults , kids , baby , home, offices.
✅【LCD Backlight & Switch ℃/F】The thermometer readings can switch ℃ to F , and the measurement results truly in human body temperature. The backlight of this thermometer's LCD display can be turned on or off..
✅【Quick and High Accuracy】The adult non-contact forehead thermometers can quickly obtain accurate readings within 1S , measuring time: ≤0.5S. Thermometer can be used as a thermometer for thermometer for adults and kids..
✅【Fever Alert】By customizing the alarm temperature value, when the detected body temperature enters the fever zone, the forehead thermometer will alert you. The alarm system reminds users that they need to pay attention..
✅【Wide Range】Adult thermometers have high measurement accuracy and stable performance. Measuring range (89.6F~109.4F), infrared sensor error .

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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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ZHJAN 12" Distance Measuring Wheel in Feet and Inches,Collapsible Rolling Measurement Wheel Measures Up To 9999.9 ft,Walking Measuring Wheel with Key 0 Function.

【9999.9 Maximum Measuring Distance】Collapsible rolling measurement wheel measures up to 9999.9 ft，U.S. measuring units, measures in feet and inches.The measuring accuracy of distance measuring wheel is ± 0.5%..
【Accurate Measurement】The measuring wheel in feet adopts gear counting and does not need to install batteries.The forward count increases and the backward count decreases. If the destination is exceeded, you can go backward to avoid wasting your time..
【Multifunction】ZHJAN measure wheel has one button reset,clear and accurate counter larger bracket, strong and firm joint,Light and firm folding rod,TPR tires with increased friction,and original position mark to help you complete your work..
【Easy to Carry】The measurement wheel is light but strong.The size after twice folding is 16in, and the size after unfolding is 40in.It is long enough after being unfolded so that you will not feel backache after long-term use..
【Multiple Applications】The measuring wheel for construction is suitable for a variety of people: real estate appraisers, construction workers....

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eTape16 ET16.75-DB-RP Digital Tape Measure, 16', Inch and Metric (Black)

2-in-1 MEASURE- Laser Tape Measure combines two accurate measuring tools into one easy-to-use solution: a laser distance measurer for measuring big spaces up to 65 feet long and a traditional 16-foot tape measure for smaller tasks that require short-span precision.
ONE HAND, ONE PERSON OPERATION- Simple, one button operation allows for fast and easy long distance laser measurements accurate to within an 1/8-inch press button once to begin measuring.
HIGH VISIBILITY DISPLAY- Large white digits on a black backlit screen provides easy reading at any angle in feet, inches and fractions of an inch.
REAL-TIME MEASURING- Walk-off measurements from the wall and other surfaces to find precise distances with continuous measurement that adjusts as you move closer and farther from target, just like a tape measure.

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Magpie VH-80, Bilateral Laser Distance Meter + 2 Professional Magnetic Laser Target Plates

MEASURE DISTANCES FAST AND EFFORTLESSLY: Do you want to measure long distances, but there’s no one around to help you? The world’s first bilateral laser measurer is the tool you need to get the job done conveniently. This unique measuring device can measure any distance up to 262ft (80m) safely and conveniently without having to strain your body or use dangerous positions. Every professional construction worker and DIY'er needs this smart gadget..
Essential tool for Laser Distance Meter and Laser Level products. Best target plate for laser distance meter, laser level, laser measure, cross line lasers, alignment, rotary lasers, and all green and red beam laser level products (compatible with green and red lasers)..
Buy one and get one free! Two target plates per package. Especially for the VH-80 Magpie Bilateral Laser Distance Meter..
Magnet strip & Stand. Use it as a guide for measuring distances with a laser distance meter in situations where there is no reflective surface. Use the built-in stand or magnetic strip feature to position it. Scale displays both inches and centimeters..

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Songhe HC-SR04 Ultrasonic Sensor Module Distance Measuring Sensor Module for Arduino UNO MEGA2560 Nano 5pcs

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....
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....
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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BOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)

Photocoupler output type: phototransistor.
Package quantity: 50 pieces, packed in a durable and resealable plastic storage box..
Application: PC817 photocoupler is widely used in computer terminals, SCR system equipment, measuring instruments, photocopiers, automatic ticketing, household appliances.

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Industrial Laser Thermometer Gun, BTMETER 50:1 Infrared Temperature Meter w/Adjustable Emissivity Measure High Temp -58°F to 3416°F for HVAC Furnace Pizza Oven, IR Pyrometer BT-1880

...e within 0.25second,display temp reading in 0.1°F resolution..
✅【Adjustable Emissivity】Different objects have different ability to emit infrared. BT-1880 thermometer gun is designed with 0.1~1.0 emissivity especially, so as to adapt all kinds surface temperature measurement as well as ensure its high accuracy measuring. Widely used in household kitchen food grilling cooking baking, industrial HVAC car automotive electrical appliances maintenance and scientific laboratory etc..
✅【50:1 D:S】Larger distance to spot(D:S) ratio 50:1 and double laser pointer design, not only offer more option on measuring distance, but also help you to locate the measurement area clearly though shoot farther. Just point and pull the trigger, then get more accurate reading than usual. Portable high temperature measurer to keep you away from heat danger when metal grill blacksmith forge copper melting or checking heating/cooling around the house..
✅【Not for Human】 BTMETER BT-1880 is an handheld industrial IR temp reading gun and it’s intended to check lifeless object surface temperature only. You could use it to monitor temp for automotive maintenance/ griddle cooking/ pavement asphalt/ bearded dragon reptile tank/ electrical appliances freezer Air condition....

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WOSPORTS Golf Rangefinder, 800 Yards Laser Rangefinder, High-Precision Flag Lock/Speed/Distance, Tournament Legal Rangefinder for Golfing,Target Shooting and Hunting,with Battery

3 models rangefinder: This laser golf rangefinder for golfing and hunting has 3 Modes: Flag Lock/Distance/Speed(0-300km/h).Perfect for measuring golf flags..
800 yards high accuracy golf rangefinder: This laser rangefinder can measurement 5 to 800 yards and 250 yards to a flag lock. Provides fast measurement( with +/- 1 yard )..
Fast focus: The H-111 golf range finder It provides the true measurement accurate.You'll be able to see the object you're measuring clearly and find its distance..
Human Design: Continuous scan. Ergonomic design. Inseparable battery cover with the distance rangefinder. Automatically shut down after 10 seconds of inactivity..
Tournament legal golf rangefinder: The rangefinder provides accurate yardage and flag-lock distance.It without slope compensated distance,let the tournament is legal.This is a gift choice for golf fans..

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Digital Non-Contact Handheld Laser Photo Tachometer Motor speed Gauge Tester Rotational Record(60 Data)MAX/MIN/AVG ±0.02%+1 Accuracy Measuring Range:2.5-99999RPM distance:50~500mm with Reflective Tape

Tachometer is a high quality instrument to measure the revolutions per minute(RPM) with wide measuring range and high resolution.
High accuracy measurement, quick measuring time and long detecting distance up to 500mm(20 inch) with Laser..
Wide measuring range(2.5 to 99999 RPM) and high resolution..
Capable of measuring at a distance from 2-20in(50-500mm)..
Data hold function, data record and recall(60 readings)..

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The Muscular System | PE Posters | Gloss Paper measuring 33” x 23.5” | Physical Education Charts for the Classroom | Education Charts by Daydream Education

... images create a fun learning environment in which students can excel. Our amazing wall posters can help to increase students’ interest towards Physical Education, while recapping any key information they've been taught..
LARGE SIZE – IDEAL FOR READING FROM A DISTANCE: Our school wall charts are a generous size, measuring 33” x 23.5”. This ensures all posters are easily readable from a distance. Our educational posters are a fantastic way of brightening and decorating any classroom and can easily complement every type of learning environment..
FAST SHIPPING: ****SHIPS 5-10 BUSINESS DAYS**** After you have placed your order, the products will be delivered within 10 business days to your chosen address. Daydream Education is the No. 1 provider of educational wall charts, helping students’ learning in schools for over 20 years!.

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