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EAT Sheffield SFTA100 Smart Tach Plus P4230993EAT-SFTA100 https://cdnimages.opentip.com/full/EAT/EAT-SFTA100.jpg Sheffield SFTA100 Smart Tach Plus Manufacturer Part Number: TA100Rugged construction with protective holster and flexibleantennaWide measuring range: 200 to 19,999 RPMWide distance from the antenna to ignition systemmeasuring range for tachometer functionQuick and easy selection of No. of cycles and No. ofcylindersDisplays maximum and minimum readings in real timeQuick response: < 0.3 secondsLarge LCD display with symbols and measuring unitsNon-contact technologyAuto power off 4230993 833303000190 2.4000lbs 0.00 0.00 0.00
General Technologies
155.5600 2026-12-24 Only 2 left In Stock
customer review - by , October 10, 2025
5/ 5stars
I liked the fact that I could check RPMs and spark plug voltage with out hooking up wires
customer review - by , May 5, 2025
5/ 5stars
Liked everything.
customer review - by , January 1, 2025
5/ 5stars
I like versatility. Saves a lot of work
customer review - by , July 7, 2024
5/ 5stars
This is more expensive than some of the competition. The batteries are replaceable so this should last a while.I use this for tuning Carbs.
customer review - by , June 6, 2024
5/ 5stars
This is the best tool for small engines and ignition issues in cars and trucks. Its easy to use and accurate.
customer review - by , August 8, 2023
5/ 5stars
As advertised and quick delivery
customer review - by , August 8, 2022
5/ 5stars
Seems like a very solid unit for work on my chainsaws. The probe works while spanning the spark plugs wire or from a distance of a few feet while tuning. The refresh rate is pretty decent compared to the cheaper units
customer review - by , July 7, 2022
4/ 5stars
Good product
customer review - by , May 5, 2022
4/ 5stars
I use this tachometer primarily for small engine (2 and 4 Cycle) testing and repair where my optical tach is impractical to use. On a few occasions, I have used it on V6 automotive engines. It worked well in all cases. Also, I have found it to be considerably more accurate than others of similar design. In fact, I returned another manufacturer's much less expensive model because of unstable, inaccurate readings. The TA100, so far, seems t be accurate and having the Peak kV feature can provide some insight when troubleshooting. The case is plastic, and unfortunately, uses a cheaper living hinge rather than a proper pinned hinge, and may split over time.
customer review - by , April 4, 2022
5/ 5stars
Great value for money. Works great on my 67 beetle. Matched the same as mechanic instrument at shop.
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Sheffield SFTA100 Smart-Tach Plus

stars Rating 5 | 13 reviews
Brand General Technologies
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UPC: 833303000190
SKU: EAT-SFTA100
Price:
$155.56& this item ships for FREE Shipping. Details
Quantity:
Only 2 left In Stock
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Product Description

Free Shipping Promotion
This item qualifies for free shipping within US 48 states. Details.

Manufacturer Part Number: TA100

Rugged construction with protective holster and flexibleantenna
  • Wide measuring range: 200 to 19,999 RPM
  • Wide distance from the antenna to ignition systemmeasuring range for tachometer function
  • Quick and easy selection of No. of cycles and No. ofcylinders
  • Displays maximum and minimum readings in real time
  • Quick response: < 0.3 seconds
  • Large LCD display with symbols and measuring units
  • Non-contact technology
  • Auto power off

    • warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

    Return Policy

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    Customer Reviews
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    Write a Review
    By Kenneth H. Bloom
    Date: October 12, 2025
    I liked the fact that I could check RPMs and spark plug voltage with out hooking up wires
    Rating: 5 stars [5 of 5 Stars!]
    By Kindle Customer
    Date: May 18, 2025
    Liked everything.
    Rating: 5 stars [5 of 5 Stars!]
    By A Customer
    Date: January 23, 2025
    I like versatility. Saves a lot of work
    Rating: 5 stars [5 of 5 Stars!]
    By Stephen Q
    Date: July 30, 2024
    This is more expensive than some of the competition. The batteries are replaceable so this should last a while.I use this for tuning Carbs.
    Rating: 5 stars [5 of 5 Stars!]
    By Aldog
    Date: June 19, 2024
    This is the best tool for small engines and ignition issues in cars and trucks. Its easy to use and accurate.
    Rating: 5 stars [5 of 5 Stars!]
    By Robert T.
    Date: August 25, 2023
    As advertised and quick delivery
    Rating: 5 stars [5 of 5 Stars!]
    Items 1 - 6 of 13 reviews
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