# Fnirsi P4100 Probe Oscilloscope Probe 100:1 Attenuation

**URL:** https://aio.lv/en/product--fnirsi-p4100-proble--12620346
**Data updated:** 2026-08-12 04:36 (EEST)
**Category:** Other goods
**Manufacturer:** Fnirsi
**Manufacturer code:** P4100 proble
**EAN:** 5905156108264
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-11-17 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fnirsi-p4100-proble--12620346

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.11.2026 | free |
| Pickup points | 05.11.2026 | 1.99 EUR |
| Courier delivery to door | 05.11.2026 | 4.99 EUR |

## Summary description

The Fnirsi P4100 Probe is a high-voltage oscilloscope probe featuring a 100:1 attenuation ratio. Designed for precise electronic measurements and signal analysis, it ensures reliable performance in professional laboratories, repair shops, and educational settings.

## Long description

The Fnirsi P4100 Probe Oscilloscope Probe 100:1 Attenuation is a professional high-voltage measurement tool designed for accurate signal analysis in service centers, laboratories, and electronics workshops. Offering a 100:1 attenuation ratio and a 100 MHz bandwidth, this probe is engineered to handle varying voltage levels and ensure reliable performance during complex electrical diagnostics. Built with durable ABS plastic and featuring a 1.1-meter cable, it provides the necessary reach and resilience for everyday professional use.
Advantages
The Fnirsi P4100 oscilloscope probe delivers exceptional measurement precision through its high input resistance of 100 MΩ and extremely low input capacitance of 6 pF, minimizing circuit loading during testing. A short rise time of just 3.5 ns allows for the faithful reproduction of dynamic waveforms and rapid signal changes. Its robust housing ensures resistance to heavy use, while the wide compensation range of 10 pF to 35 pF supports stable and accurate signal capture across various testing environments.
Suitable for
Measuring high-voltage circuits up to 1000 V DC + ACPP
Professional laboratory research and electronic circuit development
Repair and maintenance in electronics service shops
Educational demonstrations in technical schools and universities
General signal analysis and waveform diagnostics
When it may not be suitable
This probe may not be suitable for low-voltage measurements where high attenuation is unnecessary or where maximum signal sensitivity is required without a 100:1 reduction. It is also not designed for ultra-high-frequency applications exceeding the 100 MHz bandwidth limit.
Key specifications
Bandwidth: 100 MHz
Attenuation ratio: 100:1
Maximum operating voltage: 1000 V DC + ACPP
Input resistance: 100 MΩ
Input capacitance: 6 pF
Compensation range: 10 pF–35 pF
Rise time: 3.5 ns
Cable length: 1.1 m
Material: ABS plastic
How to use
Connect the Fnirsi P4100 probe to your compatible oscilloscope input channel. Adjust the compensation using the included screwdriver and the compensation range settings to match your oscilloscope input characteristics before taking measurements. Attach the appropriate test leads or positioning sleeves depending on the measurement point requirements. Ensure that the circuit under test does not exceed the maximum operating voltage limits before connecting the probe tip.
What to consider before purchase
Verify that your oscilloscope is compatible with high-voltage probes and standard BNC connections
Confirm that your typical measurement tasks require a 100:1 attenuation ratio
Check that the 100 MHz bandwidth meets your frequency analysis requirements
Ensure the maximum voltage of your circuits does not exceed 1000 V DC + ACPP
Usage recommendations: Always calibrate and compensate the probe with your oscilloscope before performing critical high-voltage measurements to ensure signal accuracy and operator safety.

## FAQ

### How much does the Fnirsi P4100 Probe Oscilloscope Probe cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 56 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 02.11.2026 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

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