---
product_id: 501038005
title: "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: "257655CFA"
currency: XOF
in_stock: true
reviews_count: 9
category: "Seesii"
url: https://www.desertcart.sn/products/501038005-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz-to
store_origin: SN
region: Senegal
---

# 32GB built-in microSD for direct data logging 100kHz-5.4GHz ultra-wide freq range 5000mAh battery with 3hr fast USB-C charging 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:** 257655CFA
**Availability:** ✅ In Stock

## Summary

> 📡 Tiny device, massive frequency power — own the spectrum like a pro!

## Quick Answers

- **What is this?** 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?** 257655CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/501038005-tinysa-ultra-zs406-spectrum-analyzer-4-0-inch-100khz-to)

## 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

- • **All-Day Operation:** Robust 5000mAh rechargeable battery ensures extended field use with quick 3-hour charging—stay powered without pause.
- • **Dual-Mode Powerhouse:** Switch between spectrum analyzer and signal generator modes, including sine, square, and dual-tone outputs up to 4.4GHz.
- • **Plug & Play PC Control:** USB-C connectivity with automatic driver installation and Tinysa-APP integration for real-time data transfer and remote control.
- • **Ultra-Wide Frequency Mastery:** Covering 100kHz to 5.4GHz, this handheld analyzer captures signals from WiFi to UHF with unmatched versatility.
- • **Seamless Data Capture & Sharing:** Built-in 32GB microSD card lets you record and export measurement data effortlessly—perfect for on-the-go pros.

## Overview

The SeeSii TinySA Ultra+ ZS406 is a compact, handheld spectrum analyzer featuring a 4.0-inch touchscreen and an ultra-wide 100kHz to 5.4GHz frequency range. It integrates a 32GB microSD card for direct data recording, dual functionality as a signal generator, and USB-C PC connectivity for seamless control. With advanced ESD protection, excellent phase noise performance, and a long-lasting 5000mAh battery, it’s engineered for professionals demanding precision and portability in one sleek package.

## Description

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: desertcart.com: Industrial & Scientific

Review: Good spectrum analyzer for the price - Works properly and as expected. Was able to use it to analyze signals from wifi, car key fobs, and vco output well. Does the job of a spectrum analyzer without having to pay thousands for a professional one.
Review: Upgrade of the Vintage TinySA Spectrum Analyzer - I'm still in the process of evaluating the Ultra's capabilities. But, a few initial thoughts. A person that is used the original TinySA can operate and calibrate the Ultra out of the box. I note that an actual operation manual specifically for the Ultra seems to be unavailable, so a person new to the TinySA will have to look through the original TinySA manual and gather bits and pieces on TinySA website for the additional features of the Ultra. They refer to groups.io for a knowledge base and I have experienced mixed results. The waterfall of the Ultra seems not as clear and distinct as the original TinySA. On the bench, the Ultra is reasonable for most spectrum analyzer applications, but not the precision of commercial equipment. In summary, a reasonable value for cost and small enough to fit in your hand, a useful tool in my tool box for sure. Cheers!

## 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 | B0BBGK9QJB |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #25,264 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Spectrum Analyzers |
| Date First Available | August 22, 2022 |
| Item Weight | 9.3 ounces |
| Item model number | SEESII- TinySA ULTRA |
| Manufacturer | Seesii |
| Product Dimensions | 6.69 x 4.72 x 2.56 inches |

## Images

![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/81Vy91IOx9L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: The data is compatible with wireless workbench (shure) and wireless system manager (sennheiser) ?**
A: I seriously doubt it.  The tinySA is more a toy than anything else, certainly not professional in operation.

**Q: Where can i download the tinysa-app software and instruction manual pdf?**
A: from their web site

**Q: Could i measure rfid signal strength from rfid antennas with this?**
A: yes

**Q: Can TinySA Ultra be used with Rational Waves software?**
A: I would guess yes, but you would have to write the code for interface, etc.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good spectrum analyzer for the price
*by K***N on July 17, 2025*

Works properly and as expected. Was able to use it to analyze signals from wifi, car key fobs, and vco output well. Does the job of a spectrum analyzer without having to pay thousands for a professional one.

### ⭐⭐⭐⭐⭐ Upgrade of the Vintage TinySA Spectrum Analyzer
*by M***E on February 26, 2025*

I'm still in the process of evaluating the Ultra's capabilities. But, a few initial thoughts. A person that is used the original TinySA can operate and calibrate the Ultra out of the box. I note that an actual operation manual specifically for the Ultra seems to be unavailable, so a person new to the TinySA will have to look through the original TinySA manual and gather bits and pieces on TinySA website for the additional features of the Ultra. They refer to groups.io for a knowledge base and I have experienced mixed results. The waterfall of the Ultra seems not as clear and distinct as the original TinySA. On the bench, the Ultra is reasonable for most spectrum analyzer applications, but not the precision of commercial equipment. In summary, a reasonable value for cost and small enough to fit in your hand, a useful tool in my tool box for sure. Cheers!

### ⭐⭐⭐⭐⭐ Handy Tool
*by J***N on January 17, 2026*

Works as stated. Good build quality.

## Frequently Bought Together

- 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
- BECEN 10W SMA Attenuator,40db,DC to 3GHz,50 Ohm
- DHT Electronics Handheld Antenna Cable SMA Male to UHF SO-239 Female Connectors 6'' Pack of 2 for Amplifier

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-10*