# Filament Detector Sensor for Flashforge Guider 3 — compatible with model 20003721001

**URL:** https://aio.lv/en/product--flashforge-20003721001--10638278
**Data updated:** 2026-02-12 22:01 (EET)
**Category:** 3D Printer Consumables
**Manufacturer:** Flashforge
**Manufacturer code:** 20003721001
**EAN:** 6937120303589
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--flashforge-20003721001--10638278

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 11.08.2026 | free |
| Pickup points | 14.08.2026 | 1.89 EUR |
| Courier delivery to door | 14.08.2026 | 4.99 EUR |

## Summary description

Filament detector sensor designed for use with Flashforge Guider 3 printers, compatible with model 20003721001. The sensor monitors filament presence and can pause prints on runout or break events to prevent failed prints. Intended as a replacement or spare part, it ensures more reliable long prints and reduces material waste by detecting filament interruptions.

## Long description

The filament detector sensor for Flashforge Guider 3 is a replacement part designed to monitor filament presence during printing and pause the job if a runout or break occurs. Compatible with Flashforge Guider 3 printers, this sensor helps reduce failed prints and material waste by detecting interruptions in the filament feed and signaling the printer to pause operations until the filament is restored.
Advantages
The sensor provides reliable filament presence detection to prevent print failures caused by filament runout or breakage. It is engineered for straightforward replacement and integration with Flashforge Guider 3 hardware, maintaining consistent print continuity for long-duration jobs. By pausing the print automatically on filament interruption, it reduces wasted filament and the need to restart lengthy prints from the beginning.
Подходит для
Мониторинга подачи филамента на принтерах Flashforge Guider 3
Замены неисправного или изношенного датчика филамента
Уменьшения количества бракованных длинных печатей и экономии материалов
Поддержки работы в средах, где требуются длительные непрерывные печати
Key specifications
Function: filament presence detection and print pause on runout or break
Compatibility: designed for use with Flashforge Guider 3 series
Mounting: replacement/spare part form factor compatible with original printer mounting points
Signal interface: designed to communicate with printer firmware to trigger pause/resume actions
Application environment: intended for desktop/industrial desktop 3D printing using common thermoplastic filaments
How to use
Install the sensor in place of the original filament detector following the printer manufacturer’s service instructions. Once connected, ensure the wiring and connector orientation match the printer’s filament detection input. During a print, the sensor monitors filament feed; if it detects a runout or break, it sends a signal to the printer to pause the print job. After replacing or restoring the filament, resume the print via the printer interface or control software.
Usage recommendations
For reliable operation, verify physical alignment of the filament path through the sensor and confirm secure electrical connections. Use with compatible filament types and ensure firmware settings on the Flashforge Guider 3 recognize external filament sensors. Regularly inspect the detector for dust or filament debris and replace it if mechanical wear affects detection accuracy.

## FAQ

### How much does the Filament Detector Sensor Flashforge Guider 3 20003721001 cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 11.08.2026 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. 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 Flashforge 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 Flashforge 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