# Fnirsi DST-201 3-in-1 Handheld Digital Multimeter with Oscilloscope and Signal Generator

**URL:** https://aio.lv/en/product--fnirsi-dst-201--12426868
**Data updated:** 2026-05-10 04:44 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Fnirsi
**Manufacturer code:** DST-201
**EAN:** 5905156102309
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 39.25 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fnirsi-dst-201--12426868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Fnirsi DST-201 is a versatile 3-in-1 handheld testing device combining a digital multimeter, an oscilloscope, and a signal generator. Designed for electronics diagnostics and circuit analysis, this compact tool provides essential measurement capabilities for technicians and hobbyists. It offers reliable performance for voltage, current, and waveform monitoring, making it an efficient solution for field repairs and laboratory testing.

## Long description

The Fnirsi DST-201 is a versatile 3-in-1 handheld testing device that integrates a True RMS digital multimeter, a portable oscilloscope, and a DDS signal generator into a single compact unit. This multifunctional tool is designed to provide comprehensive diagnostic capabilities for electronics technicians and hobbyists, allowing for real-time waveform monitoring, precise electrical measurements, and active circuit testing in a mobile format.
Advantages
The device stands out by offering a real-time waveform view that is typically absent in standard multimeters, enabling users to visualize signal behavior directly on the screen. With its 1 MHz bandwidth and 5 MSa/s sampling rate, the integrated oscilloscope captures transient events, spikes, and jitter with high clarity. The inclusion of a DDS signal generator with 13 selectable waveforms allows for active testing of amplifiers and filters without the need for additional equipment. Furthermore, the True RMS multimeter ensures accurate readings even with distorted signals, while the 2.8-inch color TFT display provides excellent visibility in various lighting conditions, supported by a long-lasting 3000 mAh battery.
Suitable for
Electronics diagnostics and troubleshooting
Automotive electronics repair
Testing and tuning of audio equipment and filters
Monitoring power supply stability
Field service and laboratory circuit analysis
When it may not be suitable
This device is intended for general electronics and low-voltage applications. It may not be suitable for high-voltage industrial power distribution systems or high-frequency RF engineering where specialized, high-bandwidth laboratory equipment is required.
Key specifications
Display: 2.8-inch color TFT with day and night modes
Multimeter resolution: 19,999 counts
Oscilloscope bandwidth: 1 MHz with 5 MSa/s sampling
Signal generator: DDS type, 13 waveforms, 0–10 kHz range
Voltage range: Up to 1000 V DC and 750 V AC
Current range: Up to 9.999 A AC/DC
Power: 3000 mAh rechargeable battery with USB-C charging
How to use
To begin, charge the device using the provided USB-C cable. Select the desired function—multimeter, oscilloscope, or signal generator—using the intuitive function knob and physical buttons. For multimeter tasks, connect the test leads to the appropriate ports and select the measurement mode. When using the oscilloscope, connect the probe to the signal source and adjust the trigger and time base settings to stabilize the waveform. For signal generation, configure the waveform type, frequency, and amplitude in the generator menu before connecting to your circuit.
What to consider before purchase
Ensure the 1 MHz bandwidth is sufficient for your specific signal analysis needs.
Verify that the maximum voltage and current ratings meet your safety requirements.
Consider the portability benefits against the limitations of a handheld form factor compared to benchtop units.
Usage recommendations: Always inspect the test leads and probes for damage before use. Utilize the silicone protective cover to prevent impact damage during field work, and remember to use the auto-off feature to preserve battery life during extended sessions.

## FAQ

### How much does the Fnirsi DST-201 3-in-1 Handheld Multimeter and Oscilloscope cost, and is it available for purchase?

The price is 47.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 57 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Fnirsi products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Fnirsi service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12426868/68724890_large.webp