RELIABLE PROFESSIONAL MACHINE
Seesii always insists on providing our customers with accurate and practical testing instruments and maintenance equipment.

Seesii focuses on providing new and innovative measuring tools and electronics to meet the needs of home and professional.
After years of development and research,we are becoming more and more popular for our reliable quality, constantly improving technology & excellent and convenient service.
Nanovna Antenna Analyzer
VNA Analyzer & Tinysa
Upgraded Frequency VNA
Spot Welder for 18650 Battery
Seesii Underground Wire Tracer
New-Desgin Spot Welder
Professional Signal Generator
Desktop Signal Generator

A great product! Very nice and neat case, small size, is very accurate in its measurements (I have multiple calibrated meters and this one is just as accurate) and has all the functions you need from a multimeter plus the large screen ability makes it very versatile.
Both my colleagues saw me using a multimeter, consulted me about it, they both bought one, and each was very happy with his choice. I recommend it unreservedly.

This New Version V0.4.5.1 Spectrum Analyzer with 4.0 inch 480 x 320 large touchscreen display, 100kHz to 5.3GHz widely measure range, with the new ESD protection function,and built-in 32Gb micro SD card, can directly record data to the card ,which is convenient for your data sharing and storage.
Compared with the 2.8 inch tinysa, upgraded TinySA ULTRA has a larger screen size, a wider measurement range, faster and more accurate measurement performance, you can easily cope with measurement test in various fields.

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.

4.0 inch Large Touchscreen
With 4.0 inch 480 x 320 high definition screen, which can let you operate and see the data more clearly, give you a better using experience.
Built-in 3000m-ah Rechargeable Battery
Ultra-long battery life,with type-C charging cable and LED charging indicator,it can be fully charged within 3 hours,no need to charge frequently.
32GB TF SD card Included
Built-in 32Gb mi-cro SD card, can directly record data to the card ,which is convenient for your data sharing and storage.

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.