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The FNIRSI HS-03 rechargeable soldering iron pen is a professional 10W cordless soldering iron designed for precision electronics soldering, circuit board repairs, SMD component assembly, electronic maintenance and DIY projects. Featuring a high-capacity 2600mAh rechargeable battery, it delivers true cordless operation, providing excellent mobility for workshop use, field repairs and on-site technical work.
Its advanced rapid heating technology allows the soldering tip to reach working temperature in as little as 7 seconds, reducing waiting times and improving productivity. The precise digital temperature control can be adjusted from 100°C to 450°C, making it suitable for delicate microelectronics as well as more demanding soldering applications.
The dual power system enables seamless operation either from the integrated battery or via a USB-C power supply, ensuring uninterrupted performance whenever required. The advanced PID temperature control system maintains exceptional thermal stability during use, minimising temperature fluctuations and improving soldering quality.
This portable cordless soldering iron features a 0.96-inch HD IPS colour display that provides real-time information including temperature settings, battery status and operating mode. Five preset temperature levels allow quick adjustments, while intelligent sleep and standby functions help extend tip life and reduce power consumption.
The kit includes three interchangeable F210 precision soldering tips for different applications: an F210-K knife tip, an F210-I fine tip and an F210-IS angled tip. These high-performance tips provide excellent thermal response for PCB repairs, SMD soldering, micro soldering and precision electronic work.
Supplied as a complete kit, the HS-03 includes a 2600mAh lithium-ion battery, a durable storage and carrying case, a pen-style protective cap, a USB-C charging cable and a precision screwdriver for tip maintenance and replacement.
If you are looking for a professional rechargeable soldering iron, a USB-C cordless soldering pen, a portable soldering iron for electronics or a precision soldering tool for electronic repairs, technical maintenance, laboratories or maker projects, the FNIRSI HS-03 offers outstanding performance, accuracy and convenience in an ultra-compact design.
| Model | HS-03 |
| Product Type | Rechargeable cordless soldering iron pen |
| Maximum Power | 10 W |
| Operating Voltage | 5 V |
| Power Supply | USB Type-C |
| Included Battery | 2600mAh rechargeable lithium-ion battery, replaceable |
| Operating Mode | Cordless or USB-C powered |
| Temperature Range | 100°C to 450°C (212°F to 842°F) |
| Temperature Adjustment Precision | 1°F increments |
| Temperature Control Technology | High-precision PID control |
| Heating Time | Approximately 7 seconds |
| Quick Temperature Presets | 5 preset levels |
| Power Saving System | Configurable auto sleep and standby modes |
| Sleep Timer | 0.5 to 60 minutes |
| Standby Timer | 1 to 60 minutes |
| Display | 0.96-inch HD IPS colour screen |
| Compatible Tip Type | F210 |
| Included Tips | F210-K (knife), F210-I (fine), F210-IS (angled) |
| Tip Core Resistance | 2.10 Ω |
| User Orientation | Suitable for both right-handed and left-handed users |
| Design | Compact, lightweight and ergonomic |
| Grip Material | Non-slip silicone |
| Weight | Approx. 134 g |
| Included Accessories | Storage case, pen-style protective cap, USB-C cable and precision screwdriver |
| Recommended Applications | Electronics, PCB repair, SMD components, DIY projects, technical maintenance and micro soldering |
