is it less accurate with Poly strings vs gut? tested in on poly at 52 and it is telling me the tension is greater than 70

52 what ? Kg , Lbs , STI ?? and 70 what ?

Is there an instructional video to follow to get best outcome?

Not that I am aware of. It’s pretty straight forward. You place the two plastic extenders in a square in the middle of the racquet. Turn the device until the arrows line up and take your reading.

The picture says it goes up to 70 but the one I just received only goes to 35. Am I missing something?

The one I received does have a scale going to 70. I wonder if they put the wrong paper scale on yours. You need to return it or have them send you a new scale that you can paste over the old one.

I worked on tennis strings with 50 tensions. However, when I measure with this product, it is only 36. Is this product defective?

This product does not measure the effective tension of the strings, it compares the tension. Measure with it after you have tensioned your strings and note down the scale number and check day by day what the new scale is and compare the numbers. The manufacturer recommends changing the strings when you lose more than 10% (I'm not entirely sure about this percentual) of the tension in their scale.

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Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball)

Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball)

Product ID: 2342882

Details

Brand
GAMMA
Item Highlight
Item Weight
16 ounces
Item dimensions L x W x H
7 x 4 x 1
Number of Items
1

🎾Measures string tension loss precisely

📏Large, easy-to-read scale

🖐️Ergonomic one-hand operation

MOP$421

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Description

🎾 Keep your game tight—never miss the perfect string tension again!

COMPACT LIGHTWEIGHT - Portable 16-ounce design fits seamlessly into your gear bag for on-the-go string care
ERGONOMIC ONE HANDED USE - Designed for effortless, single-handed operation during your busy practice sessions
MULTI SPORT COMPATIBILITY - Perfect for tennis, squash, and racquetball players who demand peak performance
CLEAR LARGE SCALE DISPLAY - Quickly read tension levels with a bold, easy-to-see scale—no guesswork needed
PRECISION TENSION TRACKING - Stay ahead of string wear with accurate tension loss measurement

The Gamma Sports Racquet String Tension Tester is a precision tool designed to measure relative string tension loss over time for tennis, squash, and racquetball racquets. Featuring a modern ergonomic design for easy one-handed use and a large, easy-to-read scale, it ensures players maintain optimal string performance and know exactly when to restring. Compact and lightweight, it’s a must-have for serious racquet sport enthusiasts aiming to maximize their competitive edge.

Specifications

ASIN	B0007R8MAQ
Best Sellers Rank	#50,564 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Tennis Stringing Machines & Tools
Brand	GAMMA
Brand Name	GAMMA
Customer Reviews	4.1 out of 5 stars 427 Reviews
Global Trade Identification Number	00090852458760
Included Components	String Tension Tester
Item Dimensions	7 x 4 x 1 inches
Item Highlight	Tennis/Squash/Racquetball
Item Type Name	String Tension Tester
Item Weight	16 ounces
Item dimensions L x W x H	7 x 4 x 1 inches
Manufacturer	Gamma
Manufacturer Contact Information	phone: (800) 333-0337 email: sales@gammasports.com website: https://www.gammasports.com/
Model	AGSTT10
Number of Items	1
Part Number	AGSTT-10
UPC	751738893463 090852458760
Unit Count	1 Count

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MOP$421

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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