--- product_id: 526305517 title: "SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer, 4.0 Inch 100kHz to 5.4GHz Handheld Tiny Frequency Analyzer with 32Gb Card, 2-in-1 Signal Generator MF/HF/VHF UHF Input,V0.4.6.1,2025 Upgraded" brand: "seesii" price: "€ 490.51" currency: EUR in_stock: true reviews_count: 5 category: "Seesii" url: https://www.desertcart.hr/products/526305517-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz store_origin: HR region: Croatia --- # 32GB built-in microSD data storage 100kHz-5.4GHz ultra-wide freq range 5000mAh long-lasting battery SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer, 4.0 Inch 100kHz to 5.4GHz Handheld Tiny Frequency Analyzer with 32Gb Card, 2-in-1 Signal Generator MF/HF/VHF UHF Input,V0.4.6.1,2025 Upgraded **Brand:** seesii **Price:** € 490.51 **Availability:** βœ… In Stock ## Summary > πŸ“‘ See the unseen, generate the future β€” your spectrum, your rules. ## Quick Answers - **What is this?** SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer, 4.0 Inch 100kHz to 5.4GHz Handheld Tiny Frequency Analyzer with 32Gb Card, 2-in-1 Signal Generator MF/HF/VHF UHF Input,V0.4.6.1,2025 Upgraded by seesii - **How much does it cost?** € 490.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/526305517-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz) ## Best For - seesii enthusiasts ## Why This Product - Trusted seesii brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Power Through Your Day:** Recharge fast with Type-C and enjoy up to full-day use on a single 5000mAh battery charge. - β€’ **Vibrant 4.0" HD Touchscreen:** Navigate complex data effortlessly with 450 scan points on a crisp color display. - β€’ **Ultra-Wide Frequency Mastery:** Cover 100kHz to 5.4GHz with precision and speedβ€”never miss a signal. - β€’ **Pro-Grade Durability & Connectivity:** Enhanced ESD protection plus USB PC control for real-time data transfer and command execution. - β€’ **All-in-One Analyzer & Signal Generator:** Switch seamlessly between spectrum analysis and multi-mode signal generation. ## Overview The SeeSii TinySA Ultra+ ZS406 is a cutting-edge handheld spectrum analyzer and signal generator featuring a 4.0-inch HD touchscreen, ultra-wide 100kHz to 5.4GHz frequency range, and built-in 32GB microSD for direct data recording. With advanced ESD protection, a powerful 5000mAh rechargeable battery, and seamless PC connectivity via USB, it delivers professional-grade performance for RF analysis and signal generation in a compact, portable design. ## Description Product Description Seesii 2025 Upgraded Tinysa Ultra+ ZS406 100kHz–5.4GHz Spectrum Analyzer Features a 4.0-inch HD touchscreen with up to 450 scan points for clear visualization of complex spectrum data. While ESD protection and the latest V0.4.6 hardware system provide professional and stable performance. 2-in-1 Function Integrates a 100kHz-5.4GHz spectrum analyzer (Ultra Mode and High-Performance Normal Mode) and a signal generator (sine wave, square wave, mixed signal output) TinySA ULTRA+ vs. TinySA Spectrum Analyzer TinySA ULTRA+ offers a 4-inch screen, 5.4GHz range, and 5000mAh battery, compared to TinySA with a 2.8-inch screen, 960MHz range, and 650mAh battery. 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. More Feature Comparison and Specifications TinySA Ultra+ ZS406 TinySA Ultra+ ZS406 Kit TinySA Ultra+ ZS407 TinySA NanoVNA-F V3 NanoVNA-F V2 Nanovna-H Review: whats going on in your radio enviroment - brilliant bit of kit for the price. Review: Spectrum Analyser - Works very well for the price. Certainly good for upto 800Mhz calibrated and upto about 12Ghz max. Amazing. Unfortunately have no separate signal generator to test except Bluetooth and Wi-fi signals but appears to pick these up. Reception relies on a reasonable antenna. Antenna supplied works well enough and detects FM broadcasts. The FM demodulator is a great bonus just to hear the broadcast; quality is great for just checking to see what's there. Overall fantastic piece of kit. ## Features - Upgraded ZS406 TinySA Ultra+:This New Version V0.4.6.1 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 - Widely 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 5000m-ah rechargeable battery,with type-C charging cable and LED charging indicator,it can be fully charged within 3 hours,no need to charge frequently - Excellent Phase Noise Performance: With advanced spectrum analyzer, especially tinysa ultra, outstanding phase noise performance is shown. At 30MHz, phase noise is -108dB/Hz at 100kHz offset and -115dB/Hz at 1MHz offset. DANL is -166dBm/Hz. There's an LNA in the level menu, which offers 20dB extra gain for low - level signals (LNA in tinysa ultra works only below 3.5GHz). The default max frequency is 800MHz. No need to switch frequency ranges, and you can monitor the whole range in one sweep - Package Contents: 1x ZS406 Tinysa ULTRA+ Spectrum Analyzer (built-in 5000mah rechargeable battery), 1x 32GB Micro SD card (plugged in the host) 2x 30cm ALSR100 SMA cables,1 x USB Type-C data cable, 1x SMA-SMA barrel connector,1x TLanyard and touch plectrum; 1x Antenna with SMA connector, 1x stylus touch pen ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BVV6BHK9 | | Batteries | 1 Lithium Polymer batteries required. (included) | | Batteries Required? | Yes | | Batteries included? | Yes | | Battery Cell Type | Lithium Polymer | | Best Sellers Rank | 12,283 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 in Spectrum Analysers | | Colour | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (27) | | Date First Available | 15 Feb. 2023 | | Finish | Chrome | | Item Package Quantity | 1 | | Item Weight | 360 g | | Item model number | 5.3GHz ZS206 | | Manufacturer | Seesii | | Material | PCB | | Part number | ZS206 | | Product Dimensions | 16 x 11 x 5.5 cm; 360 g | | Size | Tinysa ULTRA | | Special Features | 150 | | Style | Upgraded TinySA Ultra | ## Images ![SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer, 4.0 Inch 100kHz to 5.4GHz Handheld Tiny Frequency Analyzer with 32Gb Card, 2-in-1 Signal Generator MF/HF/VHF UHF Input,V0.4.6.1,2025 Upgraded - Image 1](https://m.media-amazon.com/images/I/81pd0FQV4pL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ whats going on in your radio enviroment *by S***N on 27 June 2025* brilliant bit of kit for the price. ### ⭐⭐⭐⭐⭐ Spectrum Analyser *by S***T on 3 January 2024* Works very well for the price. Certainly good for upto 800Mhz calibrated and upto about 12Ghz max. Amazing. Unfortunately have no separate signal generator to test except Bluetooth and Wi-fi signals but appears to pick these up. Reception relies on a reasonable antenna. Antenna supplied works well enough and detects FM broadcasts. The FM demodulator is a great bonus just to hear the broadcast; quality is great for just checking to see what's there. Overall fantastic piece of kit. ### ⭐⭐⭐⭐ 3.5mm jack disconnected inside *by A***R on 29 January 2026* Overall a great item and everything functioning. However, suddenly, I wasn't able to use the 'Listen' feature because of constant plugging and unplugging of the 3.5mm jack. I unscrewed the back to check the port and it was completely disconnected from the PCB. I had to solder it back on. Just beware that the solder isn't strong enough to hold the 3.5mm jack. ## Frequently Bought Together - 2024 Upgraded TinySA Ultra Spectrum Analyzer, SeeSii 4.0 Inch 100kHz to 5.3GHz Handheld Tiny Frequency Analyzer with 32Gb Card, 2-in-1 Signal Generator 100kHz to 800MHz MF/HF/VHF UHF Input,V0.4.5.1 - DollaTek four-piece set Coaxial RF connector BNC to SMA connector SMA to BNC adapter - RF Demo Kit Board, NanoVNA RF Test Module, Filter/Attenuator Module with 2 UFL Patch Cord for Learning Vector Network Analyzer, Antenna Analyzer Test Calibration --- ## 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.hr/products/526305517-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz](https://www.desertcart.hr/products/526305517-seesii-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-25*