---
product_id: 2342882
title: "Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) | Tennis/Squash/Racquetball"
brand: "gamma"
price: "$51.42"
currency: USD
in_stock: true
reviews_count: 13
category: "Gamma"
url: https://www.desertcart.us/products/2342882-gamma-sports-racquet-string-tension-tester-tennis-squash-racquetball-tennis
store_origin: US
region: United States of America
---

# Accurate tension readings Large, easy-to-read scale Ergonomic one-hand use Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) | Tennis/Squash/Racquetball

**Brand:** gamma
**Price:** $51.42
**Availability:** ✅ In Stock

## Summary

> 🎾 Stay ahead of the game with precision tension testing!

## Quick Answers

- **What is this?** Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) | Tennis/Squash/Racquetball by gamma
- **How much does it cost?** $51.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/2342882-gamma-sports-racquet-string-tension-tester-tennis-squash-racquetball-tennis)

## Best For

- gamma enthusiasts

## Why This Product

- Trusted gamma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Clarity:** Large, clear scale delivers fast, accurate readings—no more guessing when to restring.
- • **Game-Changing Timing:** Know exactly when your strings lose tension to avoid performance dips and costly mistakes.
- • **Precision You Can Trust:** Consistent tension index to track string wear and optimize your game.
- • **Effortless One-Hand Operation:** Modern ergonomic design lets you test tension quickly without interrupting your flow.
- • **Pro-Level Insight at a Fraction of the Cost:** Get reliable, repeatable results without the $200 price tag—smart gear for savvy players.

## Overview

The Gamma Sports Racquet String Tension Tester offers consistent, easy-to-read measurements of string tension loss over time. Its ergonomic one-hand design and large scale provide quick, reliable readings to help players know exactly when to restring, enhancing performance without breaking the bank.

## Description

Product Description The String Tension Tester lets you know when it's time to restring. Measures relative tension loss of strings over time. Modern ergonomic design is easy to operate with one hand. Large scale is easy to read, providing greater accuracy. Manufacturer Contact Information phone: (800) 333-0337 email: sales@gammasports.com website: https://www.gammasports.com/

Review: a $25 tool not a $200 instrument - It has the utility of a $200 tension measuring instrument in that the measurement may not be accurate, but it will be consistent. It will return the same result ten, fifteen and twenty minutes from now. Its intended use is to help you decide when to replace your strings before they severely affect your game. It isn’t to check the accuracy of your stringing machine or your tennis shop stringer. That said, a week after I restrung my racquet to 55#, the Gamma STT measured 55#. An iPhone app said the tension was 36.3 lb. The racquet plays like 55#.
Review: Tension string tester - This worked great, it was very accurate and easy to use.I purchased a different brand of tension tester prior to buying this one and it was way off. I highly recommend this tension tester.

## Features

- The STT lets you know when it’s time to restring.
- Provides a "String Tension Index" to determine relative tension loss of strings over time
- Modern ergonomic design is easy to operate with one hand.
- Larger scale, quickly gives readings with more accuracy than competitive testers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007R8MAQ |
| Best Sellers Rank | #63,092 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 417 Reviews |
| Global Trade Identification Number | 00090852458760 |
| Included Components | String Tension Tester |
| Item Dimensions | 7 x 4 x 1 inches |
| Item Type Name | String Tension Tester |
| Item Weight | 1 Pounds |
| 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 | 1.0 Count |

## Product Details

- **Brand:** GAMMA
- **Color:** Multi
- **Item Weight:** 1 Pounds
- **Item dimensions L x W x H:** 7 x 4 x 1 inches
- **Style:** Modern

## Images

![Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) | Tennis/Squash/Racquetball - Image 1](https://m.media-amazon.com/images/I/816nYeWsAhL.jpg)

## Questions & Answers

**Q: 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**
A: 52 what ? Kg , Lbs ,  STI ??  and 70 what ?

**Q: Is there an instructional video to follow to get best outcome?**
A: 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.

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

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ a $25 tool not a $200 instrument
*by J***X on April 21, 2022*

It has the utility of a $200 tension measuring instrument in that the measurement may not be accurate, but it will be consistent. It will return the same result ten, fifteen and twenty minutes from now. Its intended use is to help you decide when to replace your strings before they severely affect your game. It isn’t to check the accuracy of your stringing machine or your tennis shop stringer. That said, a week after I restrung my racquet to 55#, the Gamma STT measured 55#. An iPhone app said the tension was 36.3 lb. The racquet plays like 55#.

### ⭐⭐⭐⭐⭐ Tension string tester
*by G***E on December 15, 2025*

This worked great, it was very accurate and easy to use.I purchased a different brand of tension tester prior to buying this one and it was way off. I highly recommend this tension tester.

### ⭐⭐⭐⭐ Good tennis gadget.
*by R***Z on May 18, 2025*

It does do its job. Perhaps gauge numbers not exactly precise.

## Frequently Bought Together

- Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball)
- GAMMA Sports Tension Calibrator for Tennis Stringing Machine & Badminton Stringing Machine - Compatible with All Machines, Tests up to 90 Pounds of Tension

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-27*