# Digital multimeter Fnirsi FNIRSI S1 6000 counts auto range backlight

**URL:** https://aio.lv/en/product--fnirsi-fnirsi-s1--11618328
**Data updated:** 2026-03-31 18:14 (EEST)
**Category:** Measuring tools
**Manufacturer:** Fnirsi
**Manufacturer code:** FNIRSI S1
**EAN:** 5907085527369
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 21.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fnirsi-fnirsi-s1--11618328

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Fnirsi FNIRSI S1 is a digital multimeter with 6000 counts, auto-ranging and backlight for the display. Designed for measuring voltage, current and resistance in electronics repair, hobby projects and basic diagnostics. Compact handheld form factor provides portability; auto-range simplifies measurements while backlight ensures visibility in low light conditions.

## Long description

The FNIRSI S1 is a compact digital multimeter with a clear inverted VA color display and auto-ranging capability. It provides measurements commonly needed for electronics repair, household appliance troubleshooting, computer and automotive diagnostics, and basic electrical installation tasks. The device includes a rechargeable 1000 mAh lithium battery charged via USB-C and combines multimeter functions with non-contact voltage detection and a pen-style live/neutral check.
Advantages
The FNIRSI S1 supports AC/DC voltage measurement, resistance, continuity test with audible signal, diode test, frequency (Hz), NCV non-contact voltage detection, temperature measurement and True RMS for more accurate readings on irregular waveforms. It features automatic range switching, data hold, low-battery indication, automatic shutdown and a built-in flashlight. Smart anti-burn protection and full overload protection help prevent damage from incorrect connections. The compact ABS housing and VA backlit display improve usability in low light and confined workspaces.
Suitable for
Electronics repair and PCB troubleshooting
Household appliance maintenance
Computer and automotive basic diagnostics
Electrician and installer field checks
Hobbyist and DIY electrical measurements
Key specifications
Display: Inverted VA color screen with backlight
Counting capability: Up to 6000 (display shows up to 9999 max range)
Measurement functions: AC/DC voltage, resistance, continuity (audible), diode test, frequency (Hz), temperature
True RMS measurement for accurate readings on non-sinusoidal waveforms
Non-contact voltage (NCV) detection with light and sound indication
Power supply: Rechargeable lithium battery, 1000 mAh, USB-C charging
Housing material: ABS
Safety rating: Category III up to 1000 V
Dimensions: 143 x 75 x 19 mm
Weight: 135 g
How to use
Charge the multimeter using the supplied USB-C cable until the battery is full. Connect the test leads according to the measurement type (voltage, resistance, etc.), select the required function if manual selection is needed, or allow the auto-range to choose the appropriate range. For NCV detection, use the indicated sensor area and observe visual and audible cues. Use the data hold function to freeze displayed readings when needed. Follow standard safety practices: ensure correct probe connections and observe voltage and category limits.
Usage recommendations
Regularly charge the internal battery and inspect test leads for damage before use. Use the NCV function to identify live conductors before connecting probes, and rely on the built-in overload and anti-burn protections as a last resort—always follow safe working procedures and protective equipment when measuring mains voltages.

## FAQ

### How much does the Digital multimeter Fnirsi FNIRSI S1 cost, and is it available for purchase?

The price is 26.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 86 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 15.07.2026 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/11618328/66826020_large.webp