--- product_id: 688274242 title: "SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded" price: "10462291₫" currency: VND in_stock: true reviews_count: 6 url: https://www.desertcart.vn/products/688274242-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-5 store_origin: VN region: Vietnam --- # 32GB built-in data storage 5.4GHz ultra-wide freq range 3000mAh long-lasting battery SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded **Price:** 10462291₫ **Availability:** ✅ In Stock ## Summary > 📡 See the unseen, analyze like a pro—your pocket-sized signal powerhouse! ## Quick Answers - **What is this?** SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - **How much does it cost?** 10462291₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/688274242-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-5) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built-In 32GB Storage:** Seamlessly record and share your data on the go without extra gear. - • **Robust PC Integration:** Control and customize via USB with automatic drivers and Tinysa-APP for streamlined workflows. - • **Vibrant 4.0" Touchscreen:** Navigate complex signals with a crisp 480x320 color display designed for pros. - • **Ultra-Wide Frequency Mastery:** Cover 100kHz to 5.4GHz with precision and speed—never miss a signal. - • **Dual-Mode Analyzer & Generator:** Switch effortlessly between spectrum analysis and signal generation up to 4.4GHz. ## Overview The SeeSii TinySA Ultra+ ZS406 is a cutting-edge handheld spectrum analyzer featuring a 4.0-inch touchscreen, ultra-wide 100kHz to 5.4GHz frequency range, and a powerful 21dB LNA module. Equipped with a 32GB microSD card for direct data recording and a 3000mAh rechargeable battery, it offers professional-grade signal analysis and generation capabilities in a compact, portable design—perfect for engineers, hobbyists, and tech-savvy professionals seeking precision and convenience. ## Description Product description Upgraded 4.0-inch TinySA ULTRA+ Spectrum Analyzer with ZK06-UM Low Noise Amplifier (21dB) This new Version V0.4.6 features a 4.0-inch touchscreen display (480 x 320), a frequency range of 100kHz to 5.4GHz, built-in ESD protection, and a 32GB micro SD card for convenient data recording and storage. PC Control Available Connect via USB to function as a PC-controlled Spectrum Analyzer or Signal Generator. Tinysa-APP enables direct data transfer, with the CDC protocol supporting comprehensive measurement and setting commands. Automatic Windows driver installation and native Linux kernel support. Built-in 32Gb micro SD card can directly record data to the card, which is convenient for your data sharing and storage. TinySA ULTRA+ vs. TinySA Spectrum Analyzer TinySA ULTRA+ offers a 4-inch screen, 5.4GHz range, and 3000mAh battery, compared to TinySA with a 2.8-inch screen, 960MHz range, and 650mAh battery. Review: Used to check my new Baofengs - With this device, I know that my newer Baofengs have clean signals. My 10 year old Baofengs do not. This was a great tool (with an attenuator) to find out. Way back when I got my ham license, a Spectrum analyzer like this would set you back $5-10K. To get wone for under $150 today is amazing! Review: Excellent Value in a Compact Spectrum Analyzer - The TinySA Ultra+ is an impressive compact spectrum analyzer for its price point. I tested it with a professional signal generator and was genuinely impressed by its performance and accuracy. The PC-controlled software is also a standout feature—making setup, measurements, and configuration both easier and more comprehensive. Highly recommended for both hobbyists and professionals alike. ## Features - Experience unparalleled performance with the ZK06-UM 21dB LNA Module, offering a broadband frequency range of 10 MHz to 6 GHz, robust 18 dBm output power, impressive 21 dB gain, ultra-low noise, and convenient USB type-C power supply - SeeSii Upgraded TinySA Ultra+: This New Version V0.4.6 Spectrum Analyzer is developed by Hugen, with 4.0 inch 480 x 320 large touchscreen display, 100kHz to 5.4GHz widely measure range, with the new ESD protection function, the product has a higher anti-static level and a longer service life, and built-in 32Gb micro SD card, can directly record data to the card ,which is convenient for your data sharing and storage - Frequency Range: Compared to the tinysa (100kHz to 960MHz), the upgraded tinysa ULTRA+ has 100kHz to 5.4GHz ultra-wide measuring frequency range, spectrum analyzer for 0.1-800MHz, with Ultra mode up to 0.1MHz-6GHz.Switchable resolution band pass filters for both ranges between 200Hz to 850kHz. Color display showing 450 scan points covering up to the full low or high frequency range. Faster and more accurate measurement performance, you can easily cope with measurement testes in various fields - 2 in 1 Multifunctional Frequency Analyzer & Signal Generator: When not used as Spectrum Analyzer it can be used as Signal Generator,with sine wave output between 0.1-800MHz or square wave or dual tone output up to 4.4GHz.Built-in calibration signal generator that is used for automatic self test and low input calibration - PC Control: Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer or Signal Generator.Tinysa-APP transfers data directly to the computer.The USB interface implements CDC protocol and there is a large set of commands that can be invoked over the serial interface. These command can be used to perform measurements or update internal settings. The driver for Windows will install automatically after connecting to a Windows PC. The driver for Linux is built into the kernel - Ultra-long Battery Life: The upgraded tinysa analyzer built-in 3000mAh rechargeable battery, with type-C charging cable and LED charging indicator,it can be fully charged within 3 hours,no need to charge frequently ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.9 out of 5 stars 17 Reviews | ## Images ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - Image 1](https://m.media-amazon.com/images/I/81VbLA6atJL.jpg) ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - Image 2](https://m.media-amazon.com/images/I/71a2F-DPJCL.jpg) ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - Image 3](https://m.media-amazon.com/images/I/711IdzD-sYL.jpg) ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - Image 4](https://m.media-amazon.com/images/I/714wR-HYDTL.jpg) ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - Image 5](https://m.media-amazon.com/images/I/81RlcdZXA7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Used to check my new Baofengs *by M***I on February 1, 2026* With this device, I know that my newer Baofengs have clean signals. My 10 year old Baofengs do not. This was a great tool (with an attenuator) to find out. Way back when I got my ham license, a Spectrum analyzer like this would set you back $5-10K. To get wone for under $150 today is amazing! ### ⭐⭐⭐⭐⭐ Excellent Value in a Compact Spectrum Analyzer *by D***O on July 27, 2025* The TinySA Ultra+ is an impressive compact spectrum analyzer for its price point. I tested it with a professional signal generator and was genuinely impressed by its performance and accuracy. The PC-controlled software is also a standout feature—making setup, measurements, and configuration both easier and more comprehensive. Highly recommended for both hobbyists and professionals alike. ### ⭐⭐⭐⭐⭐ Good gear for price *by A***O on June 26, 2025* Great unit!!! ## Frequently Bought Together - SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer: 4.0 Inch 5.4GHz Handheld Tiny Frequency Analyzer with ZK06-UM 21dB LNA Module 32Gb Card—100kHz to 800MHz MF/HF/VHF UHF Input, 2025 Upgraded - BECEN 10W SMA Attenuator,40db,DC to 3GHz,50 Ohm --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/688274242-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-5](https://www.desertcart.vn/products/688274242-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-5) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-19*