---
product_id: 778746667
title: "Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder"
brand: "signal fire"
price: "€ 160.36"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.hr/products/778746667-signal-fire-ai-20-fusion-splicer-high-precision-one-step
store_origin: HR
region: Croatia
---

# 6s ultra-fast splice time Mobile app sync & cloud storage 15s rapid heating cycle Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder

**Brand:** signal fire
**Price:** € 160.36
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Cut, splice, and connect at the speed of now!

## Quick Answers

- **What is this?** Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder by signal fire
- **How much does it cost?** € 160.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/778746667-signal-fire-ai-20-fusion-splicer-high-precision-one-step)

## Best For

- signal fire enthusiasts

## Why This Product

- Trusted signal fire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Connectivity:** Sync splicing data instantly with your phone app—track, store, and share your work effortlessly.
- • **All-in-One Precision:** Integrated ONE-STEP cleaver, fusion splicer, and 9-in-1 stripper for seamless, error-free fiber prep.
- • **Lightning-Fast Fusion:** Complete splicing in just 6 seconds to keep your projects moving at millennial speed.
- • **Vibrant 5-Inch Display:** High-res LCD with up to 320x magnification for crystal-clear fiber alignment and inspection.
- • **Global Language Support:** Switch between 10 languages including English, French, Spanish, and Arabic for worldwide usability.

## Overview

The Signal Fire AI-20 Fusion Splicer is a cutting-edge, all-in-one optical fiber tool combining ultra-fast 6-second splicing and 15-second heating with a built-in electric ONE-STEP cleaver. Featuring a 5-inch high-resolution display, 9-in-1 stripper, and advanced core alignment with six motors, it supports 10 languages and mobile app connectivity for real-time data sync and cloud storage. Powered by a 7800mAh battery, it delivers up to 240 continuous splices and heats, making it the ultimate precision device for professional fiber optic technicians.

## Description

Parameter : 1). Fiber alignment:Core/cladding alignment / Manual alignment 2). Splicing time:5S,Heating time:15S 3). Heating mode:Automatic heating（Preheating） 4). Focus mode:Six motors Auto focus 5). Screen:5 inch TFT color display 6). Magnification:300 for X or Y view, 150 for X or Y view 7). Splicing Mode:Normal / high precision splicing 8). Splicing method:Fully automatic, Step by step splicing 9). 10 Languages to switch freely： English,french,Russion,Italian,Portuguese,Polish,Spanish,Thai,Arabic. 10). Built-in Optical Power Meter: Wave length:850nm、1300nm、1310nm、1490nm、1550nm、1625nm Measuring Range:-70 +6db Absolute Error:<0.3db(-50dbm +3dbm Range). 11). Built-in Visual Fault Locator: Power:15mw,2hz flashing And Constantly Bright Mode. 12). Built-in battery:7800 mA high-capacity lithium battery, charging time 3.5 hours,continuous splicing and heating about 200 times. 13). Fiber holders:3 in 1 fiber holder, SM, MM, bare fiber, pigtail, rubber-insulated, multi fiber cable. Applicable Fibers:SM(G.652&G.657)、MM(G.651)、DS(G.657)、NZDS(G.655). 14). Splice Loss:0.025dB(SM)、0.01dB(MM)、0.04dB(DS/NZDS). 15). Return loss:Better than 60DB. Shrinkable tube:60mm、50mm、40mm、25mm. 16). Fiber diameter:Cladding Diameter：80-150m、Coating Diameter：100-1000m. Fiber Cleave Length:Coating less than 250µm：8-16mm、Coating less than 250-1000µm:16mm. 17). Control technology:Real-time control and calibration of fusion ARC. 18). Splicing record storage:Synchronize to the phone, the server to cloud storage unlimited. Software updates Length:Automatically update、 Update by a key. 19). Boot time:1 second 20). Power supply:Input AC100-240V 50 / 60HZ, output DC13.5V / 4A, the current power mode can be identified, real-time detection of battery power. 21). Operating Conditions:Temperature -15 +50 ℃, humidity: <95% RH (no condensation) Working altitude: 0 ～ 5000m.

Review: Works good but temperature and humidity seems to affect its quality of splice.
Review: I've waited a year and about 1000 splices to write this review. I have 13 years of experience using at least a dozen different machines. I originally bought this splicer as a cheap option for starting my business. Even though I own a used Fujikura 70S now, it sits in my office and I STILL use the SignalFire. I like the small case, though I'm way too tall to find the stool useful so it's in the garage on a shelf. The important thing to remember is that it's a little finicky and requires regular cleaning and calibration. the cleaver is the same way, pretty solid but requires maintenance and adjustment more than some others. With regular maintenance, it's been really reliable for me and my splices test out great. I would really like some sort of arm to close the heater automatically, rather than having to align the splice with 4 fingers and close it with a 5th but I have gotten used to it and it doesn't really bother me anymore. The other problem with the heater is if you let the sleeve fall to the bottom, it can pinch grooves into the sleeve but holding it while you close the heater solves that problem. I'd also be willing to pay a little bit more for a built in UI with a touch screen; I'm not a big fan of the app, though it works alright. On a scale of the best splice machines I've used, it's probably a 3.5 star machine (beating every INNO I've tried by a mile). The reason for 5 stars is the price to value ratio. Absolutely worth it. Overall, I'm very surprised and impressed with how functional it is at this price.

## Features

- 【Faster Splicing & Heating】- Signal fire fusion splicer AI-20 is the fourth-generation optical fiber fusion splicer, it combines electric ONE-STEP fiber cleaver and fusion splicer as one, with 9-in-1 signal fire stripper. The AI-20 fusion splicing machine uses a powerful high-speed motor that allows fast 6 second splice time and 15 second heat time, continuous splice and heats about 240 times.
- 【 Automatic Delayed Return Electric ONE-STEP Cleaver】- Perfectly solves the problem of traditional mechanical one step cleaver back cutting scratching the fiber end face. The factory standard delay time is set to 0.5 seconds, and the adjustable range is 0.2 seconds to 2 seconds. ﻿The fiber splicer machine integrates optical fiber cleaver, waste fiber box and fiber cleaning brush which makes your operation more convenient. After placing the fiber, make sure that the fiber has passed the far right of the cutter, the lid is closed and automatically cut. (NOTE: PLEASE KEEP THE CLEAVER CLEAN WHEN USING IT, OTHERWISE IT WILL AFFECT THE ACCURACY.)
- 【Built-In Power Meter & VFL】- Using the latest core alignment technology with auto-focus and six motors. Effectively measure connection losses, verify continuity, and help evaluate fiber link transmission quality. OPM can be switch between the wavelength of 850nm; 1300nm, 1310nm, 1490nm, 1550nm, 1625nm,980nm,1270nm,1577nm and 1650nm. VFL can be switch between three states power: 15mW, 2Hz flashing and steady on mode.
- 【Clear LCD & Long Time Standby】- With 5-inch high-resolution screen, it is up to 320 times the focus magnifications when X/Y Axis displayed separately, 200 times focused magnifications when X and Y Axis dual display. 7800 mah high-capacity lithium battery, charging time ≤ 3.5 hours.
- 【Intelligent Interaction】- This splicing heating machine can be connected to mobile app, ten different languages can be switched like English, French, Russia, Italian, Portuguese, polish, Spanish, Thai, Arabic which is convenient for customers to use. You can check the data by your mobile phone and downloaded or output at any time, also the splicing records can be stored indefinitel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Signal Fire |
| Power Source | Battery Powered |
| Style | AI-20 |
| Colour | Silver |
| Item Weight | 7.06 Ounces |
| Item dimensions L x W x H | 16.5 x 23 x 25.5 Centimeters |
| Upper Temperature Rating | 5E+1 Degrees Celsius |
| Measurement Type | Optical Power Meter |
| Manufacturer | Signal fire |
| Model number | AI-20 |
| Item Weight | 200 g |
| Product Dimensions | 16.5 x 23 x 25.5 cm; 200 g |
| Batteries | 1 A batteries required. (included) |
| Item model number | AI-20 |
| Item Height | 25.5 Centimeters |
| Item Width | 23 Centimeters |
| Included Components | NO |
| Are batteries included? | Yes |
| Lithium battery energy content | 7800 Milliamp Hours (mAh) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium battery weight | 271 Grams |
| Number of lithium ion cells | 1 |
| Number of lithium metal cells | 1 |

## Product Details

- **Brand:** Signal Fire
- **Power Source:** Battery Powered
- **Style:** AI-20
- **Colour:** Silver
- **Item Weight:** 7.06 Ounces

## Images

![Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder - Image 1](https://m.media-amazon.com/images/I/41SyQEPigkL.jpg)
![Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder - Image 2](https://m.media-amazon.com/images/I/518IwH0FTYL.jpg)
![Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder - Image 3](https://m.media-amazon.com/images/I/51OP9q9k7OL.jpg)
![Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder - Image 4](https://m.media-amazon.com/images/I/51Uja14b7AL.jpg)
![Signal Fire Ai-20 Fusion Splicer High-Precision One-Step Optical Fiber Cutter Integrated, Core Alignment W/Built-in VFL & OPM Function and 3 in 1 Holder - Image 5](https://m.media-amazon.com/images/I/51zhGnmfO8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***R on 27 April 2025*

Works good but temperature and humidity seems to affect its quality of splice.

### ⭐⭐⭐⭐⭐ Review
*by E***G on 16 September 2024*

I've waited a year and about 1000 splices to write this review. I have 13 years of experience using at least a dozen different machines. I originally bought this splicer as a cheap option for starting my business. Even though I own a used Fujikura 70S now, it sits in my office and I STILL use the SignalFire. I like the small case, though I'm way too tall to find the stool useful so it's in the garage on a shelf. The important thing to remember is that it's a little finicky and requires regular cleaning and calibration. the cleaver is the same way, pretty solid but requires maintenance and adjustment more than some others. With regular maintenance, it's been really reliable for me and my splices test out great. I would really like some sort of arm to close the heater automatically, rather than having to align the splice with 4 fingers and close it with a 5th but I have gotten used to it and it doesn't really bother me anymore. The other problem with the heater is if you let the sleeve fall to the bottom, it can pinch grooves into the sleeve but holding it while you close the heater solves that problem. I'd also be willing to pay a little bit more for a built in UI with a touch screen; I'm not a big fan of the app, though it works alright. On a scale of the best splice machines I've used, it's probably a 3.5 star machine (beating every INNO I've tried by a mile). The reason for 5 stars is the price to value ratio. Absolutely worth it. Overall, I'm very surprised and impressed with how functional it is at this price.

### ⭐⭐⭐⭐⭐ Review
*by B***. on 11 August 2025*

The built-in fiber stripper is much improved and works smoothly. The splices come out clean and reliable every time. Setup is quick, and the machine is easy to operate, even for longer jobs. The screen is clear, and the alignment is accurate, making the whole process faster. Definitely a solid upgrade that saves time and delivers consistent results.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-28*