Search  for anything...
Seesii

Portable TinySA Spectrum Analyzer,SEESII Upgraded V0.3.1 Handheld Tiny Frequency Analyzer 100kHz to 960MHz MF/HF/VHF UHF Input,Signal Generator with 2.8 inch Touch Screen with ESD Protect Function

    • Based on 498 reviews
Condition: New
Checking for product changes
$89.99 Why this price?
Save $52.98 was $142.97

Buy Now, Pay Later

As low as $15.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 27
Order within 23 hours and 28 minutes
Available payment plans shown during checkout

Style: TinySA


Features

  • Frequency Range Tiny Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz. Color display showing 290 scan points covering up to the full low or high frequency rangefrequency range. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer.
  • Built-in Calibration Signal GeneratorWhen not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz. Built-in calibration signal generator that is used for automatic self test and low input calibration.
  • Tiny Spectrum analyzers & ESD FunctionSwitchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range. Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use.The performance of the 2021 latest version 3.1 will be more stable and sensitive, with a new ESD protrcted function enable the product to have a higher antistatic level and a longer service life.
  • PC ControlConnected to a PC via USB it becomes a PC controlled Spectrum Analyzer.The USB interface implements the Serial over USB (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.
  • Package List1x Tiny Spectrum Analyzer; 2 x 20cm RF Cable;1 x USB Cable;1 x SMA Female to Female Connector;1x Touchscreen Pen;1 x SMA Telescopic Antenna.It's very useful as an antenna analyzer for your ham station, easy to set without fancy calibration.The firmware of the tinySA can be updated by the user. New versions of the firmware needed please contact seller for download link.

Package Dimensions ‏ : ‎ 10.35 x 7.6 x 1.3 inches; 2.2 Pounds


Item model number ‏ : ‎ TinySA


Batteries ‏ : ‎ 1 Lithium Ion batteries required.


Date First Available ‏ : ‎ August 5, 2020


Manufacturer ‏ : ‎ Seesii


Country of Origin ‏ : ‎ China


Best Sellers Rank: #42,355 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #8 in Spectrum Analyzers


#8 in Spectrum Analyzers:


Customer Reviews: 4.5 4.5 out of 5 stars 498 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great for hunting for stray interference for wireless mic channels
Style: TinySA
Radio frequency spectrum analyzers can be very expensive, heavy and complex. Only in the last couple of years has the technology been available, at a reasonable performance level and portability. TinySA (and it's big brother, TinySA Ultra) and RF Explorer are the leading breakthrough products in Spectrum Analyzers. They each excel at different aspects of measuring RF and , all in a similar price ballpark. The original TinySA is by far the cheapest, at around $60-70. It is also the most feature-limited (though it is very full-featured by historical measure). It is marketed largely to ham radio operators, but I bought it to sniff out RF interference that might affect my wireless microphone systems that I use for my documentary work. Documentation is a bit sparse, as this is designed and supported essentially by a single person. There is no documentation in the box. However, there is a Wiki and series of short tutorial videos created by the developer to cover setup and menu controls. Most third-party reviews and video tutorials focus on ham radio and other use-cases that are unrelated to my needs. The TinySA's 0-950mhz band width is perfect for me to sniff out the UHF band from 470-608mhz (the remaining legal bands in the US) for interference sources. This device is described as "less accurate" in the 350mhz and up band, but it's plenty accurate enough for me. If I was coordinating large numbers of wireless mics for a venue or a large production, this would not be the best tool for me. I would be much better served by the 3x more expensive RF Explorer, which has a decent desktop computer application and can export frequency scans to a file that can be read by Shure's industry standard free frequency coordination app ( must, if you are looking to coordinate large numbers of RF sources. RF Explorer is a professional standard in portable RF test gear that can interface with the apps for advanced analysis and frequency coordination. TinySA Ultra has a bigger screen and extra bells and whistles and boasts a much broader range of frequencies it can scan (including way up into the wifi range) but if you just need a very portable, reliable, inexpensive standalone RF "sniffer" to help you avoid and solve RF interference problems in frequency ranges up into the UHF range, TinySA does the job beautifully. ... show more
Reviewed in the United States on June 10, 2023 by Mark S
    • Nice for the price/ But there are minor flaws
Style: With Antenna Cable
The TinySA works just fine! And so far in testing, the accuracy of this device is not to bad. First thing, an ACTUAL instruction manual would have been really nice. There is no documentation at all on how to operate the TinySA. Luckily there are several YouTube vids out there to help you along.. The menu IS a bit confusing.... There is a lot of back and fourth in the menu to set the parameters you desire. Once again, nothing is clearly explained. The “LISTEN” feature seems to be disabled, this allows you to listen in on the frequency being monitored. I don’t even think there is an actual speaker in this unit. This is my MAJOR DISAPPOINTMENT! As this feature would have been very handy from time to time. When doing the SELF TEST of CALIBRATION, the high and low ports must be connected together with the supplied jumper cable!!! If you do not follow this procedure, the unit will fail the test and not calibrate correctly. For the price, it’s definitely a great unit and worth every penny....... Just watch the videos on how to use and setup the TinySA, as I stated..... It is a bit confusing to operate. ... show more
Reviewed in the United States on March 26, 2022 by Steve “O”
    • Decent Product, Has Some Quirks
Style: TinySA
This is overall a pretty decent spectrum analyzer for the price. Good for hobbyists, but I would not say it's good for much else. It's small and portable. I can't fully vouch for the accuracy of it, but the few items I've tested with known frequencies, it picks up fairly well. The only negative feedback I have for this product is that the touch UI is super finicky and the screen calibration seems to be off. But other than that, like I said, good for hobbyists ... show more
Reviewed in the United States on July 15, 2022 by Jared S.
    • Great tool
Style: TinySA
Worked straight out of box, great tool for the price….
Reviewed in the United States on May 14, 2024 by B Reid
    • Great little instrument
Style: TinySA
It obviously has some limitations, especially resolution bandwidth, image rejection and scan speed but for the price and size it is extremely useful. With careful use, some external attenuators and filters it is capable of quite good accuracy and performs 90% of the tasks you want an SA to achieve. There is no tracking generator but a noise diode is an easy to build replacement for many uses - however you may as well just buy a NanoVNA too which has a reflection bridge built in. Heck with some software you can even use an NanoVNA as a tracking generator for the TinySA but it isn't a very pure source and would need filtering. The antenna that comes with it is very fragile. I broke it quickly. The connection between the telescoping bit and the SMA connector is implemented in a very thin-walled metal tube just after the hinge joint where it passes through the white insulation. It snapped at this point without a lot of pressure while attempting to move the hinge joint which was fairly tight when I received it. I'd recommend slackening the screw in the hinge a little to minimise the force needed and reduce the risk of breaking the thin connection to the SMA center pin. ... show more
Reviewed in the United States on May 16, 2021 by Alan Yates
    • Accurate and easy to use
Style: TinySA
The only bad thing so far is the size, I had to use my strongest (+3.75) reading glasses to read the menu. I checked with my signal generator set at 60 MHz. The tinysa gave a reading of 60.068 MHz. There is no manual with it but there is an online address listed for instructions. You have to use a very weak signal, used a small capacitor to block DC and 2.2 Megaohm resistor in series with a 50 ohm. The generator was set on 1 volt and I measured across the 50 ohm. The reading was about midrange on the SA. Edit: Just want to say 9 months later I use this little Spectrum Analyzer all of the time, feels like I've had it for years. One of the best things I've bought on Amazon. I would give it 10 stars if I could, if it went bad tomorrow I would order another! I like to build small rf projects for fun and use this to make sure there are no rf waves leaking out and bring the wrath of the FCC down on me... There is one bad thing, the supplied antenna broke from its base within a couple of months, I bought a much better one and a set of attenuators ... show more
Reviewed in the United States on May 29, 2021 by ofenmann

Can't find a product?

Find it on Amazon first, then paste the link below.