---
product_id: 61631795
title: "GB/TRK900-1 Impro UHF Handheld 4 Button Impro Transmitter (Replaces XQT904)"
brand: "impro"
price: "HK$163"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/61631795-gb-trk900-1-impro-uhf-handheld-4-button-impro-transmitter
store_origin: HK
region: Hong Kong
---

# 433.92 MHz UHF frequency Compatible with multiple Impro systems 4-channel quad control GB/TRK900-1 Impro UHF Handheld 4 Button Impro Transmitter (Replaces XQT904)

**Brand:** impro
**Price:** HK$163
**Availability:** ✅ In Stock

## Summary

> 📡 Take control with precision—your access, your command.

## Quick Answers

- **What is this?** GB/TRK900-1 Impro UHF Handheld 4 Button Impro Transmitter (Replaces XQT904) by impro
- **How much does it cost?** HK$163 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/61631795-gb-trk900-1-impro-uhf-handheld-4-button-impro-transmitter)

## Best For

- impro enthusiasts

## Why This Product

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

## Key Features

- • **Legacy Upgrade Ready:** Direct replacement for GB/XQT904, future-proof your setup without hassle.
- • **Quad-Channel Command:** Control up to 4 devices seamlessly with 4 dedicated buttons.
- • **Universal Compatibility:** Works flawlessly with Impro IXP20, IXP220, IXP300, and IXP400 controllers.
- • **Reliable UHF Transmission:** 433.92 MHz frequency ensures stable, long-range wireless performance.
- • **Seamless System Integration:** Pairs effortlessly with FlexiScan and UniScan controllers for versatile access control.

## Overview

The GB/TRK900-1 Impro UHF Handheld 4 Button Transmitter is a robust wireless controller operating at 433.92 MHz, designed for seamless integration with Impro’s range of access control systems including IXP20, IXP220, IXP300, and IXP400. Featuring 4 dedicated channels and compatibility with FlexiScan and UniScan controllers, it replaces the older GB/XQT904 model, offering reliable, long-range UHF transmission for professional-grade access management.

## Description

Single Impro GB/TRK900 UHF Handheld 4 Button ImproTransmitter. This replaces previous transmitter GB/XQT904.

## Features

- 4-channel Quad Transmitter
- For use with the Impro Quad Receiver and with the Impro range of access control products.
- Interfaces with IXP20, IXP220, IXP300 and IXP400
- 433.92 MHz transmitter as well as a passive key ring Transponder Tag.
- FlexiScan and UniScan Controller Compatible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B013GAYNB2 |
| Customer Reviews | 4.4 4.4 out of 5 stars (2) |
| Date First Available | 5 Aug. 2015 |
| Manufacturer | Impro |
| Manufacturer Part Number | GB/TRK900 |
| Number of Items | 1 |

## Product Details

- **Brand:** ImPro
- **Compatible devices:** [Specific Impro access control devices]
- **Connectivity technology:** UHF
- **Impedance:** 600 Ohms
- **Included components:** Transmitter
- **Microphone form factor:** Handheld
- **Number of channels:** 4
- **Polar pattern:** Unidirectional
- **Power source:** handheld
- **Special feature:** Portable

## Images

![GB/TRK900-1 Impro UHF Handheld 4 Button Impro Transmitter (Replaces XQT904) - Image 1](https://m.media-amazon.com/images/I/31vFLOcRM2L.jpg)

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**Shop now:** [https://www.desertcart.hk/products/61631795-gb-trk900-1-impro-uhf-handheld-4-button-impro-transmitter](https://www.desertcart.hk/products/61631795-gb-trk900-1-impro-uhf-handheld-4-button-impro-transmitter)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-31*