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REED Instruments R7100 Combination Contact/Laser Photo Tachometer

  • Based on 89 reviews
Condition: New
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Availability: In Stock.
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Arrives Thursday, Oct 3
Order within 12 hours and 42 minutes
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Features

  • Sold as 1 Each.
  • Dual function unit with both contact and non-contact capabilities. Large LCD display and low battery indicator. Surface resolution of 0.01 m/min at less than 99.99 m/min and 0.1 m/min at more than 100 m/min. 0.8 s sampling time when over 60RPM. Includes reflective tape, large and small cone tip adapters, funnel adapter, wheel adapter, batteries, mounting screws and a hard carrying case.
  • Provides fast and accurate RPM (revolutions per min) measurements of rotating objects and surface speed measurements MPM (meters per min) with included contact adapters. 8" (h) x 2.75" (w) x 1.5" (d). Basic accuracy of + or -(0.05% + 1 dgt.). Auto shut-off.
  • Built-in laser pointer identifies target area. Black. Target distance of 1.6' (500mm) for photo measurements. Low Battery Indicator.
  • Internal memory recalls maximum, minimum values as well as last value stored. Photo and contact resolution of 0.1 RPM at less than 999.9 and 1 RPM at more than 1000. <1 sec response time. Powered by 4 AA batteries.

Description

The Reed R7100 portable contact/noncontact tachometer measures up to 99,999rpm, has a laser beam for noncontact measurements, and a five-digit LCD screen. This contact/noncontact portable tachometer is used for measuring the speed of motors, conveyor belts, and other moving and rotational systems. It measures rotational speed from 10 to 99,999rpm for noncontact measurements, and from 0.5 to 19,999rpm for contact measurements, with + or - 0.05% accuracy. It is autoranging, to display the most appropriate test result value automatically. It measures surface speed from 0.5 to 1,999.9m/min. Its optical sensor is a laser beam that works at a distance from 50 to 500mm for user safety. The LCD screen presents test results and the unit of measurement, and it stores the maximum, minimum, and last test result values for ease of data recall. It comes with a cone contact adapter, a funnel contact adapter, a surface speed wheel, four AA batteries, reflective tape, instructions, and a carrying case. This tachometer is suitable for measuring rotational speed and other measurements in mechanical or industrial engineering environments.Specifications Noncontact range 10 to 99,999rpm Contact range 0.5 to 19,999rpm Surface speed range 0.5 to 1,999.9mpm Accuracy +/-0.05% Resolution 0.1rpm Operating distance 50 to 500mm Power (4) AA batteries Dimensions 210 × 74 × 37mm/6.3 x 2.8 x 1.5 inches (H x W x D) Weight 7.9 oz. H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Tachometers measure the rate of rotation or surface speed of motors, conveyor belts, and other moving systems. Contact tachometers take measurements through direct contact with the moving surface, and can measure both rpm and surface speed. Typically, contact tachometers come with a range of attachments that can be used to measure speed on different kinds of rotary systems, which may include tips used for measuring shafts with a central hole or flat end surfaces, and rotary wheels for measuring conveyor belts. Noncontact tachometers take measurements from a distance using a beam of infrared light, and provide highly accurate measurements. Contact tachometers are an excellent choice for dirty and dusty environments; noncontact tachometers only calculate rpm but are considered safer because they do not require the operator to be in close contact with the moving surface. Contact/noncontact tachometers, also known as dual, or combination tachometers, can be used to take contact and noncontact measurements. Some tachometers can also take other types of measurements, such as count or frequency, while others can output data to a computer for analysis. Tachometers are used in applications such as automobile maintenance, mechanical engineering, and maintenance of industrial equipment.Reed Instruments manufactures test and measurement equipment such as pressure gauges, electrical testers, temperature and humidity instrumentation, and inspection instruments. The company, founded in 2004, is headquartered in Wilmington, NC.What's in the Box?Reed R7100 photo-contact tachometerCone contact adapterFunnel contact adapterSurface speed wheel(4) AA batteriesCarrying caseInstructions

Brand: REED Instruments


Material: reed


Item dimensions L x W x H: 24 x 24 x 24 inches


Item Weight: 1 Pounds


UPC:


Product Dimensions ‏ : ‎ 24 x 24 x 24 inches; 1 Pounds


Item model number ‏ : ‎ R7100


Batteries ‏ : ‎ 4 AA batteries required. (included)


Date First Available ‏ : ‎ June 10, 2010


Manufacturer ‏ : ‎ REED Instruments


Country of Origin ‏ : ‎ China


Best Sellers Rank: #123,769 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #38 in Industrial Tachometers


#38 in Industrial Tachometers:


Customer Reviews: 4.2 4.2 out of 5 stars 89 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Quality I expected from Reeds Instruments
Style: Standard
The tach that I used before was an under $20, no brand, Chinese look alike that I bought a few months ago. It worked once. When I tried to use it again the display would not turn on. Very annoying. You get what you pay for. Reeds Instruments R7100 may look almost like its cheap copy but there are differences. Everything fits nicely, with a solid, heavy feel. It has a QC (quality control) sticker that actually means something. It uses 4 AA batteries - the look alike use 3 AA or some use a 9V. I ran my Sherline lathe and checked the RPM with the remote photo sensor and with the contact cone adapter. There was a negligeable difference at 1000 RPM. The contact method showed a few RPM less than the photo, which I could explain by vibration of the shaft. Bottom line, if you need an instrument you can depend on, spend more money and buy one like this. ... show more
Reviewed in the United States on November 11, 2020 by Andre Kowalczyk

  • Reading upside down…….
Style: Standard
It works well, I only dislike for my application is to measure rpm of the flywheel of the boat motor that I had to read it upside down .
Reviewed in the United States on June 15, 2021 by Huey Nguyen

  • Quality
Style: Standard
Its a good quality product & accurate. User friendly as well.
Reviewed in the United States on July 29, 2022 by Amazon Customer

  • Excellent product
Style: Standard
Excellent product, fulfilled our expectations. We are using it to measure the speed of conveyor belts
Reviewed in the United States on June 20, 2022 by Henry Suarez

  • Good little photo tach
Style: Standard
Simple to use and worked great out of the box. Used it on a verticle shaft on a fertilizer hydraulic spinner to obtain correct continual RPM.
Reviewed in the United States on June 17, 2019 by RNG

  • Poor Quality and broken out of the box.
Style: Standard
Rotary wheel didn't rotate smoothly and would stick. Poor quality construction and readings not even close to being accurate. We returned it and purchased a Fluke 931 which was almost 4 times the price and IMO worth every dime!
Reviewed in the United States on September 15, 2021 by TERONUS

  • Wanted to like it.. but couldn't keep it for that price.
Style: Standard
Check the internal wheel.. it doesn't spin still. For this price you'd expect a quality product.
Reviewed in the United States on June 4, 2024 by Antonio Borja

  • Not received well...
Style: Standard
Item was open and appeared to be used, I need it for work so I will follow up and see if it works.
Reviewed in the United States on January 21, 2021 by Christopher M.

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