---
product_id: 493960127
title: "Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter"
brand: "yaeccc"
price: "R$87"
currency: BRL
in_stock: true
reviews_count: 5
url: https://www.desertcart.com.br/products/493960127-yaeccc-gaa21750ak3-universal-server-elevator-blue-test-tool-unlimited-times
store_origin: BR
region: Brazil
---

# Double line LCD display for crystal-clear data Universal fit for OTIS & XIZI OTIS elevators Unlimited use with omnipotent blue test tool Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter

**Brand:** yaeccc
**Price:** R$87
**Availability:** ✅ In Stock

## Summary

> ♾️ Elevate your elevator service game—unlock unlimited potential!

## Quick Answers

- **What is this?** Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter by yaeccc
- **How much does it cost?** R$87 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/493960127-yaeccc-gaa21750ak3-universal-server-elevator-blue-test-tool-unlimited-times)

## Best For

- yaeccc enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Weighing just 0.28g, this industrial-grade tool fits comfortably in your toolkit without bulk.
- • **Seamless Compatibility:** Engineered to perfectly fit OTIS and XIZI OTIS elevator systems for hassle-free service.
- • **Limitless Testing Power:** Unlock unlimited uses with the omnipotent blue test tool—no restrictions, no downtime.
- • **Crystal-Clear Diagnostics:** Double line LCD ensures precise, easy-to-read elevator data every time.
- • **Effortless GECB Data Adjustment:** Quickly check and fine-tune GECB parameters to keep elevators running flawlessly.

## Overview

The Yaeccc GAA21750AK3 is a battery-powered, universal elevator test tool designed for professional technicians. Featuring a double line LCD display and perfect compatibility with OTIS and XIZI OTIS systems, it allows unlimited use for checking and adjusting GECB data, making elevator maintenance faster, smarter, and more reliable.

## Description

GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevator Service Tool TT/Converter With Powerful Adaptor

Review: This is the tool the OEM doesn't want you to have. With one use, it will pay for itself. I've had an older Blue Tool for years, and finally a couple of the membrane buttons gave out. But I used it a LOT. I bought four of these as replacements, and the only weakness I've spotted is that on a couple tools, the magnets on the back aren't very strong. If you know what this is and how to use it, you'll be very pleased. If you're not a qualified and licensed professional trained in the use of this tool, then leave it alone before you hurt someone.
Review: Funciona en los elevadores Otis, contiene 65,500 sesiones y los materiales se parecen mucho a los originales

## Features

- ·Double line LCD display, key clear.
- ·Perfect fit for OTIS & XIZI OTIS.
- ·This blue test tool is omnipotent version with unlimited times , which can check and adjust GECB data.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Part number | DS-0058-D2 |
| Item Weight | 0.28 g |
| Package Dimensions | 21.6 x 15.4 x 10.2 cm; 0.28 g |
| Item model number | DS-0058-D2 |
| Style | Industrial |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Yaeccc
- **Power source:** Battery Powered
- **Style:** Industrial
- **Item weight:** 0.01 Ounces
- **UPC:** 615200855406 733810573838

## Images

![Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter - Image 1](https://m.media-amazon.com/images/I/41fO+twksAL._AC_.jpg)
![Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter - Image 2](https://m.media-amazon.com/images/I/41fO+twksAL._AC_SY300_SX300_QL70_ML2_.jpg)
![Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter - Image 3](https://m.media-amazon.com/images/I/41sH9E7WulL._AC_.jpg)
![Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter - Image 4](https://m.media-amazon.com/images/I/51PhH6K2X6L._AC_SY879_.jpg)
![Yaeccc GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevators Service Tool TT/Converter - Image 5](https://m.media-amazon.com/images/I/61lue0ew+xL._AC_SX679_.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***N on 4 July 2019*

This is the tool the OEM doesn't want you to have. With one use, it will pay for itself. I've had an older Blue Tool for years, and finally a couple of the membrane buttons gave out. But I used it a LOT. I bought four of these as replacements, and the only weakness I've spotted is that on a couple tools, the magnets on the back aren't very strong. If you know what this is and how to use it, you'll be very pleased. If you're not a qualified and licensed professional trained in the use of this tool, then leave it alone before you hurt someone.

### ⭐⭐⭐⭐⭐ Review
*by A***O on 26 August 2019*

Funciona en los elevadores Otis, contiene 65,500 sesiones y los materiales se parecen mucho a los originales

### ⭐ Review
*by J***B on 15 May 2023*

Tool worked fantastic first few times plugging it in. But all of a sudden the screen went funky and little black rectangles fill all the screen. I can only see the MCSS+Ocss options if I look at the screen with an extreme angle. If I look at it straight on the screen is illegible due to the black rectangles. Not sure how to fix. Technically it still works I just need to set the tool at weird angles to view the screen.

## Frequently Bought Together

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-07*