--- product_id: 520843379 title: "ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device" brand: "ztuoauma" price: "Β£49.12" currency: GBP in_stock: true reviews_count: 3 category: "Ztuoauma" url: https://www.desertcart.co.uk/products/520843379-ztuoauma-elevator-blue-tt-server-test-tool-gaa21750ak3-lift-operator store_origin: GB region: Great Britain --- # Double-line LCD display Universal fit for Otis & XIZI elevators Unlimited test cycles ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device **Brand:** ztuoauma **Price:** Β£49.12 **Availability:** βœ… In Stock ## Summary > πŸš€ Elevate your elevator diagnostics to pro-level precision! ## Quick Answers - **What is this?** ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device by ztuoauma - **How much does it cost?** Β£49.12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/520843379-ztuoauma-elevator-blue-tt-server-test-tool-gaa21750ak3-lift-operator) ## Best For - ztuoauma enthusiasts ## Why This Product - Trusted ztuoauma brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Fault Code Mastery:** Instantly read and set parameters, fault codes, and I/O signals with ease - β€’ **Crystal Clear Control:** Intuitive double-line LCD and tactile buttons for precision operation - β€’ **Endless Testing Power:** Unlimited usage cycles to keep your diagnostics running non-stop - β€’ **Risk-Free Reliability:** Backed by 6 months return and 1 year free replacement warranty - β€’ **Plug & Play Compatibility:** Seamlessly works with Otis and XIZI elevator modelsβ€”no guesswork needed ## Overview The ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 is a universal, professional-grade diagnostic device designed for Otis and XIZI Otis elevators. Featuring a clear double-line LCD display and tactile buttons, it supports comprehensive functions including parameter reading, fault code detection, and input/output signal testing. With unlimited test cycles and a robust warranty, it ensures reliable, efficient elevator maintenance and troubleshooting. ## Description ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device: desertcart.com: Tools & Home Improvement Review: Works just like it should. - Got next day with Prime. Hooked it up to a GEN311 today and works just like it should. Review: It works...so you can work! - It works....buttons on these are better than most of the cheap copy blue tools....these are actual buttons...not the little metal concave plates. 3-4-25 update: one of the two i bought failed in day one while doing cat 5 testing on some gcs units. 3-5-25 update....lol....now the second failed....I went back to using the old trusty $45 dollar one I bought on the bay years ago... Wanted 3 for using 1 in each controller...one for the elevator i am working on...and two more for the elevators on each side to be able to call those cars to top floor faster so we can lock them out while hitting buffers or safety test...makes it easier with a tool for each car. ## Features - Part Number: GAA21750AK3 - Application Models: Universal Fit for Otis and Xizi Otis Elevator Device Test - Features: Easy to operate with a clear LCD display and clear entity buttons. Double line LCD display, key clear. Supports multiple functions such as reading parameters, setting parameters, fault codes, input/output signals, etc. - This blue test tool (T / T) is omnipotent version with unlimited times, which can check and adjust GECB data - Warranty: Returnable for 6 Months and Changeable for 1 Year(return and change for free) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BWY8G2J3 | | Best Sellers Rank | #394,618 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,408 in Multitools | | Date First Available | February 27, 2023 | | Item Weight | 1 pounds | | Manufacturer | ZTUOAUMA | | Package Dimensions | 8.39 x 6.06 x 4.29 inches | ## Product Details - **Brand:** ZTUOAUMA - **Color:** blue - **Manufacturer:** ZTUOAUMA - **Measurement Type:** Voltmeter - **Power Source:** Battery Powered ## Images ![ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device - Image 1](https://m.media-amazon.com/images/I/614WlCdM6mL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works just like it should. *by P***C on September 18, 2024* Got next day with Prime. Hooked it up to a GEN311 today and works just like it should. ### ⭐ It works...so you can work! *by A***I on March 3, 2025* It works....buttons on these are better than most of the cheap copy blue tools....these are actual buttons...not the little metal concave plates. 3-4-25 update: one of the two i bought failed in day one while doing cat 5 testing on some gcs units. 3-5-25 update....lol....now the second failed....I went back to using the old trusty $45 dollar one I bought on the bay years ago... Wanted 3 for using 1 in each controller...one for the elevator i am working on...and two more for the elevators on each side to be able to call those cars to top floor faster so we can lock them out while hitting buffers or safety test...makes it easier with a tool for each car. ### ⭐⭐⭐⭐⭐ Perfect *by D***S on April 27, 2023* Next Day! ## Frequently Bought Together - ZTUOAUMA Elevator Blue TT Server Test Tool GAA21750AK3 Lift Operator Debugger Compatible with Otis XIZI Otis Elevators Universal Fit Elevator Test Device - Klein Tools 5189 Tradesman Pro Hard Case Large - Elevator Blue Server Test Tool GAA21750AK3 Elevators Lift Operator Debugger Blue TT Service Test Tool use for Otis XIZI Otis Elevator --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/520843379-ztuoauma-elevator-blue-tt-server-test-tool-gaa21750ak3-lift-operator](https://www.desertcart.co.uk/products/520843379-ztuoauma-elevator-blue-tt-server-test-tool-gaa21750ak3-lift-operator) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-23*