---
product_id: 419586153
title: "GR311-L-V2 New Version Digital goniometer"
brand: "gemred"
price: "R$371"
currency: BRL
in_stock: true
reviews_count: 13
category: "Gem Red"
url: https://www.desertcart.com.br/products/419586153-gr311-l-v2-new-version-digital-goniometer
store_origin: BR
region: Brazil
---

# Color-coded buttons for intuitive use Invertible display for awkward angles Hold function to freeze measurements GR311-L-V2 New Version Digital goniometer

**Brand:** gemred
**Price:** R$371
**Availability:** ✅ In Stock

## Summary

> 📐 Measure smarter, not harder — the digital goniometer redefined.

## Quick Answers

- **What is this?** GR311-L-V2 New Version Digital goniometer by gemred
- **How much does it cost?** R$371 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/419586153-gr311-l-v2-new-version-digital-goniometer)

## Best For

- gemred enthusiasts

## Why This Product

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

## Key Features

- • **Adaptive Viewing:** Red button flips display for easy reading in any position
- • **Freeze & Transfer:** Hold function locks measurement so you can move without losing data
- • **Compact & Portable:** Lightweight 6.7 oz design fits seamlessly into your professional toolkit
- • **Color-Coded Controls:** Distinct button colors streamline operation and reduce errors
- • **Effortless Precision Reset:** One-touch white button zero reset beats old 2-second press

## Overview

The GR311-L-V2 New Version Digital Goniometer by GemRed offers enhanced usability with color-coded buttons, a one-press zero reset, and an invertible display for measuring joint angles in any position. Its hold function freezes readings for easy transfer, powered by a single CR2032 battery. Lightweight and precise, it’s a must-have for physical therapists and professionals tracking range of motion with confidence.

## Description

Buy GemRed 12" Digital Goniometer for Joint Range of Motion ROM Measurement(GR311 New Version): Occupational & Physical Therapy Aids - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Eliminating human error - Great! I use it everyday!
Review: Good quality - Accuracy that is almost perfect, and good enough for almost any use. I love the digital readout and the fact that it can be oriented in any direction. It's easy to read. I think it's necessary for me to monitor my own progress with physical therapy after knee surgery. BUT---one would think that the company would benefit from getting someone who can write with proper English grammar and sentence structure so the directions make sense. It's a small instruction sheet but go figure what they are trying to say. That is my only disappointment with the product. It might as well be written entirely in Chinese!

## Features

- 【New Buttons】Different colors acheive different functions. Easier to use and remember.
- 【Improved Function】Press WHITE button once to reset zero degree. It's convenient for measuring different joints. *Old version need to press for 2 seconds to reset zero degree.
- 【Invert Display】When measuring on awkward position, click RED button to inverted display. It will be read in comfortable way.
- 【Hold Function】Freeze the result and transfer to other place.
- 【Battery】1*CR2032(included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NCYM5TL |
| Batteries | 1 Lithium Metal batteries required. |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Best Sellers Rank | #65,573 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Construction Protractors |
| Customer Reviews | 4.3 4.3 out of 5 stars (422) |
| Date First Available | December 10, 2021 |
| Item Weight | 6.7 ounces |
| Manufacturer | GemRed |
| Package Dimensions | 13.07 x 5.43 x 1.14 inches |
| Part Number | 82305 |
| Size | 300mm(New Version) |

## Images

![GR311-L-V2 New Version Digital goniometer - Image 1](https://m.media-amazon.com/images/I/61LMYY-FSnL.jpg)
![GR311-L-V2 New Version Digital goniometer - Image 2](https://m.media-amazon.com/images/I/81FiCmnejwL.jpg)
![GR311-L-V2 New Version Digital goniometer - Image 3](https://m.media-amazon.com/images/I/81-qG0f2FaL.jpg)
![GR311-L-V2 New Version Digital goniometer - Image 4](https://m.media-amazon.com/images/I/61LWdFd5jtL.jpg)
![GR311-L-V2 New Version Digital goniometer - Image 5](https://m.media-amazon.com/images/I/61tpqnIWeVL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Eliminating human error
*by C***H on October 18, 2025*

Great! I use it everyday!

### ⭐⭐⭐⭐⭐ Good quality
*by 4***C on October 31, 2023*

Accuracy that is almost perfect, and good enough for almost any use. I love the digital readout and the fact that it can be oriented in any direction. It's easy to read. I think it's necessary for me to monitor my own progress with physical therapy after knee surgery. BUT---one would think that the company would benefit from getting someone who can write with proper English grammar and sentence structure so the directions make sense. It's a small instruction sheet but go figure what they are trying to say. That is my only disappointment with the product. It might as well be written entirely in Chinese!

### ⭐⭐⭐ Works well when it does?
*by Y***K on November 27, 2025*

Worked well in the beginning. But after 3 months, the battery becomes loose which causes a lot of errors in the measurements. Can't use it without the power because the black part covers the numbers

## Frequently Bought Together

- GemRed 12" Digital Goniometer for Joint Range of Motion ROM Measurement(GR311 New Version)
- Goniometer Set 3 Pieces of 6/8/12 Inch Occupational Physical Therapy Protractor Tool Measurement Angle Ruler Kit Plastic 360 Degree Universal (3pc)

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**Shop now:** [https://www.desertcart.com.br/products/419586153-gr311-l-v2-new-version-digital-goniometer](https://www.desertcart.com.br/products/419586153-gr311-l-v2-new-version-digital-goniometer)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-24*