---
product_id: 48925516
title: "Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball)"
brand: "gamma"
price: "€ 58.25"
currency: EUR
in_stock: true
reviews_count: 9
category: "Gamma"
url: https://www.desertcart.hr/products/48925516-gamma-sports-racquet-string-tension-tester-tennis-squash-racquetball
store_origin: HR
region: Croatia
---

# String Tension Index for precise restring timing Large, easy-to-read scale for quick accuracy Ergonomic one-hand operation design Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball)

**Brand:** gamma
**Price:** € 58.25
**Availability:** ✅ In Stock

## Summary

> 🎾 Master your string tension, master your game!

## Quick Answers

- **What is this?** Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) by gamma
- **How much does it cost?** € 58.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48925516-gamma-sports-racquet-string-tension-tester-tennis-squash-racquetball)

## 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

- • **Readings You Can Trust:** Large, clear scale delivers faster and more accurate tension measurements than competitors.
- • **Effortless One-Handed Use:** Modern ergonomic design lets you test tension quickly without interrupting your flow.
- • **Optimize Your Game Performance:** Maintain ideal string tension to maximize control, power, and feel on every swing.
- • **Stay Match-Ready with Precision:** Track your string tension loss over time to know exactly when to restring.
- • **Join the Pro-Level Stringing Club:** Trusted by serious players to keep racquets in peak condition—don’t get left behind.

## Overview

The Gamma Sports Racquet String Tension Tester offers an easy-to-use, ergonomic tool that measures relative string tension loss over time with a large, precise scale. Designed for tennis, squash, and racquetball racquets, it helps players know exactly when to restring, ensuring optimal performance and control on the court.

## 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.

Review: Not suitable for Badminton Strings! - Simply not suitable for Badminton - Returned for Refund!
Review: Tension but what tension? - This device is so non specific, very much depends on the person using it plus so much can vary. It does not give a racquet tension in terms of string tension but a reading of tension in relation to the device which is different for every person using the device. Awareness is needed to know whether it is testing a main or a cross string. There is no obvious limiter to when to stop a tension check so it is possible to go to the maximum of the device. User strength varies as does different types of strings. A good stringer will know instinctively or by sound how a racquet is tensioned. A nice idea but difficult to execute.

## 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 | 208,142 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 25 in Tennis Stringing Machines & Tools |
| Brand | Gamma |
| Customer Reviews | 4.0 out of 5 stars 409 Reviews |
| Global Trade Identification Number | 00090852458760 |
| Item Dimensions | 17.8 x 10.2 x 2.5 centimetres |
| Item Type Name | String Tension Tester |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 17.8 x 10.2 x 2.5 centimetres |
| Item weight | 1 Pounds |
| Manufacturer | Gamma |
| Manufacturer Part Number | AGSTT-10 |
| Material | Other |
| Model Number | AGSTT10 |
| Number of items | 1 |
| UPC | 751738893463 090852458760 |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |

## Product Details

- **Brand:** Gamma
- **Colour:** Multi-coloured
- **Item weight:** 454 g
- **Power source:** Battery Powered
- **Style:** Modern

## Images

![Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) - Image 1](https://m.media-amazon.com/images/I/816nYeWsAhL.jpg)
![Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) - Image 2](https://m.media-amazon.com/images/I/81AhZ6irstL.jpg)
![Gamma Sports Racquet String Tension Tester (Tennis/Squash/Racquetball) - Image 3](https://m.media-amazon.com/images/I/31PGHn2hVLL.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

### ⭐ Not suitable for Badminton Strings!
*by P***S on 8 March 2025*

Simply not suitable for Badminton - Returned for Refund!

### ⭐ Tension but what tension?
*by T***A on 18 March 2019*

This device is so non specific, very much depends on the person using it plus so much can vary. It does not give a racquet tension in terms of string tension but a reading of tension in relation to the device which is different for every person using the device. Awareness is needed to know whether it is testing a main or a cross string. There is no obvious limiter to when to stop a tension check so it is possible to go to the maximum of the device. User strength varies as does different types of strings. A good stringer will know instinctively or by sound how a racquet is tensioned. A nice idea but difficult to execute.

### ⭐ Awful
*by M***A on 18 June 2019*

Doesn't measure tension accurately and it broke after a few weeks.

## 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 Croatia*
*Store origin: HR*
*Last updated: 2026-08-04*